Photo Credit: Jodie Maoz

Back in November 2021, the inimitable Rabbi David Bashevkin of the Orthodox Union challenged his Twitter followers to consider the following question: “What’s the difference between a shtadlan and an askan?” Both Hebrew terms refer to those tireless individuals who busy themselves with public service and helping out the community at large, but how do these terms differ from one another? Going beyond the witty retorts offered by Rabbi Bashevkin’s followers, this essay offers a serious look at the words’ respective etymologies.

The term askan seemingly comes from the root ayin-samech-kuf, but where do we find such a root in the Hebrew language?


The Torah recounts a series of incidents between the shepherds employed by Isaac and those employed by Avimelech, the Philistine king of Gerar, in which the former dug wells, and the latter tried to usurp control of those wells. In telling this story, the Torah (Genesis 26:20) relates that Isaac called the first well Esek, because Avimelech’s shepherds had “fought” (hitasku) with him. The name Esek and the verb hitasku are the only two instances of the three-letter root ayin-sin-kuf in all of the Bible.

In the Mishna, verb forms of esek refer to somebody busy dealing with something, possibly to the point of such preoccupation that they will make unintentional mistakes (see Shekalim 6:2, Rosh Hashana 4:8, Sotah 1:9, Kiddushin 4:14, Eduyot 2:5, Kritot 4:3, Taharot 7:8, Nidah 8:2, and Zavim 2:2). From this sense of the term, the act of toiling in Torah Study came to be known as osek b’divrei torah, and noun forms of the word refer to specific matters or dealings (Maaser Sheini 4:7, Shabbat 23:4). When the Mishna says that the rabbis wanted to make a big deal out of the cutting of the Omer, the term used in the Mishna is “esek gadol” (Menachot 10:3).

Rabbi Binyamin Mussafia (1606-1675) in Mussaf HaAruch writes that esek in the rabbinic sense (busy to the point of preoccupation) actually derives from Greek, but he does not provide a cognate Greek word that relates to this concept. Dr. Alexander Kohut (1842-1894) in his Aruch HaShaleim presumes that Rabbi Mussafia refers to a Greek word that is pronounced áschéó– which, according to Google Translate, means “I don’t care,” possibly what a busy person who is already doing one thing feels about doing something else.

To me, the connection between the Biblical and rabbinic meanings of the word is patently obvious: Fighting is characterized by the obstinate persistence of the parties involved, who refuse to back down from their respective positions. This sort of perseverance and resolve is also prevalent among those busy themselves in dealing with various issues and toiling over their efforts for the public good. Indeed, even in rabbinic literature, the term esek somewhat retains its Biblical meaning, as it sometimes refers specifically to a matter that is subject to controversy or disagreement (see Rashi to Shavuot 31a, Bava Metzia 14a).

In the Talmud, Rabbi Shimon ben Chalafta was called an askan because he did not just accept things that other authorities said verbatim; rather, he would go out and try to see for himself if they can be verified or falsified (see Rashi to Chullin 57b). In this way, the term askan connotes the extra effort exerted in trying to get things done by oneself. Indeed, the modern-day askan is also known for busying himself with extreme efforts in doing whatever needs to be done for the general community – even if that means rolling up his sleeves and getting his own hands dirty.

As in the English language, where the word “business” (as in professional business) is related to the word “busy,” the term esek also means both intense involvement in something as well as “business” or “commerce” (Avot 4:10). (See also its Aramaic counterpart iska: Rashi to Brachot 56a, Shabbat 19b, Moed Katan 22a, Ketubot 80b, Kiddushin 30b). In Modern Hebrew, an osek refer to an independent/freelance worker, and isuk refers more broadly to one’s occupation or job.

Going back to Avimelech’s shepherds, Sforno (to Genesis 26:20) writes that when the Torah says the shepherds hitasku with Isaac’s shepherds, it means that they were attempting to “convince” (hishtadlu) Isaac’s shepherds to leave the well to them. This brings us to the etymological forebearers of the later term shtadlan (sometimes rendered shadlan).

Targum Onkelos (to Exodus 22:15) translates the Hebrew term pitui (“convincing/seducing”) into the Aramaic shadal, and Rashi (to Exodus 22:15, Yoma 35b, Kiddushin 31a) confirms that indeed these Hebrew and Aramaic terms mean the same thing. This Aramaic term also appears in the Talmud in numerous places in the context of “convincing, cajoling, or seducing” others to agree to whatever one wants of them. The term shadal seems to be derived from the triliteral root shin-dalet-lammed, but no words from this root actually appear in the Bible.

Nachmanides (to Genesis 32:25, Exodus 22:15) points out that the term shadal has various meanings. When Jacob fought with the Angel of Esav, the Bible uses the term vay’avek (Genesis 32:25), which Targum Onkelos translates into Aramaic as ishtadel, a cognate of shadal. In this case, Nachmanides sees the cosmic struggle between Jacob and the angel as an effort by each side to ”convince” the other of their correctness. According to this, shadal would refer to engaging in a campaign or effort to sway another’s opinion. In this context, Nachmanides actually uses the word esek to help define shadal.

Yet, Targum (to Ezekiel 38:4, Ruth 2:19) uses the term shadal to refer to any sort of attempt or effort to get something done, whether or not that endeavor entails trying to influence or otherwise persuade another party. This is the meaning of the more common term hishtadlut (“a try/attempt”), a permutation of which appears in the famous passages in Pirkei Avot: “In a place where there are no men, try (hishtadel) to be a man” (Avot 2:5; see also Avot 4:18). Other variations of this term appear throughout rabbinic literature, like when the rabbis advise “a person should always try (yishtadel) to greet a Jewish king” (Brachot 58a).

Interestingly, Nachmanides theorizes that the Targumic/Rabbinic term shadal is actually related to the Biblical Aramaic term shadar, derived from the triliteral root shin-dalet-reish. Unlike shadal, shadar actually appears in the Bible at least once: when the Persian king Darius was dismayed by the fact that Daniel had to be sentenced to a lion’s den. “Until sunset, he [the king] tried (mishtadar) to save him [Daniel]” (Daniel 6:15). This means that Darius tries to do everything he can in order to save Daniel (see Tosafot to Kiddushin 39b).

Nachmanides contends that there is actually another derivative of this Aramaic root in the Bible, eshtadur (Ezra 4:15, 4:19), which means “rebellion/contravening.” Although Menachem Ibn Saruk in Machberet Menachem sees this particular term as derived from an unrelated quadriliteral root aleph-shin-dalet-reish, Nachmanides seems to understand the initial letter aleph as a radical that is extraneous to the core root.

After explaining that the core meaning of shadar is “rebel,” Nachmanides notes that it often happens that the letters lammed and reish are interchangeable, leading to his understanding that shadal and shadar are actually cognates. Indeed, Nachmanides notes that in some versions of the Mishna cited above, the word used is actually spelled hishtadar, not hishtadel. Nachmanides’ etymology of shadal that connects it with shadar is also accepted by the esteemed etymologist Rabbi Dr. Ernest Klein (1899-1983).

A similar explanation of mishtadar that connects shadar and shadal is found in pseudo-Rasag (to Daniel 6:15), who also uses the Hebrew esek in sharpening the meaning of the term. The way he puts it, the Persian king actually had to “fight” to convince his subordinates that they should save Daniel.

To me, it seems that these various meanings of shadal (“convincing,” “attempting,” “rebelling,” and “fighting”) are all related in the same way that the various meanings of esek are related. In other words, the most basic meaning of shadal is “attempting.” Oftentimes, truly attempting to do something requires a sort of dedication and perseverance by which one commits oneself to not give up and keep trying. From this came the meaning of “convincing” because in order to convince somebody, one might have to keep on trying over and over again until one succeeds through various different arguments and tactics. Similarly, “rebelling” and “fighting” typically entail long-term dedications to the divisive endeavor, along with a commitment to not back down from one’s position.


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Rabbi Reuven Chaim Klein writes The Jewish Press's "Fascinating Explorations in Lashon Hakodesh" column.