One of the foods most identified with Israel is falafel. While the food is ancient, the name is more recent - and derives from the Arabic falafil. There are a number of theories as to the etymology of falafil:
- from an Arabic word meaning "fluffy", filfil (The Encyclopedia of Jewish Food)
- from an Arabic word meaning "crunchy" (The Online Etymology Dictionary)
- "perhaps from plural of earlier *filfal, from Aramaic pilpāl, small round thing, peppercorn, from palpēl, to be round, roll." (American Heritage Dictionary)
- from a Coptic word meaning "of many beans" (see here, for example)
Like Arab. fulful, filfil (= pepper) borrowed through Persian and Aram. mediation from Old I. pippalī́ (= berry, peppercorn), which is of imitative origin. Gk. peperi (whence L. piper) is of the same origin. L. piper was borrowed by many European languages.
Those European languages include English. Here's the Online Etymology Dictionary entry for "pepper":
"dried berries of the pepper plant," Middle English peper, from Old English pipor, from an early West Germanic borrowing of Latin piper "pepper," from Greek piperi, probably (via Persian) from Middle Indic pippari, from Sanskrit pippali "long pepper." The Latin word is the source of German Pfeffer, Italian pepe, French poivre, Old Church Slavonic pipru, Lithuanian pipiras, Old Irish piobhar, Welsh pybyr, etc.
Application to fruits of the Capsicum family (unrelated, originally native of tropical America) is from 16c.
Other words deriving from the spice "pepper" include "peppermint", "pepperoni", and "pep" (as in "vigor, energy"). The Hungarian word "paprika", however, got its name from the New World sweet (bell) peppers.
The Hebrew pilpel is found in rabbinic literature, starting in the mishna. It also appears in the Aramaic form פִּלְפַּלְתָּא pilpalta, but with the same meaning. In modern Hebrew there was an attempt to establish the related פִּלְפֶּלֶת pilpelet as the word for bell peppers, leaving pilpel for the spice pepper. You'll still see pilpelet in dictionaries, but from my experience, Israelis use pilpel for both kinds of pepper, and don't use pilpelet at all.
One Hebrew word that many claim ultimately derives from the same Sanskrit root is פִּלְפּוּל pilpul. It is variously translated as "sharp analysis", "intense debate", or for those less charitable, "hairsplitting" or "sophistry." It is a method found in studying Talmud, where different texts, or passages in the same text, are closely analyzed, and conclusions are found from the contradictions between them. The sharpness of the debates has led to the theory that pilpul is related to pilpel (pepper). For example, here's the opening of the entry from the 1906 Jewish Encyclopedia for pilpul:
A method of Talmudic study. The word is derived from the verb "pilpel" (lit. "to spice," "to season," and in a metaphorical sense, "to dispute violently" [Tosef., B. B. vii. 5] or "cleverly" [Shab. 31a; B. M. 85b]). Since by such disputation the subject is in a way spiced and seasoned, the word has come to mean penetrating investigation, disputation, and drawing of conclusions, and is used especially to designate a method of studying the Law (Ab. vi. 5; Baraita; B. B. 145b; Tem. 16a; Ket. 103b; Yer. Ter. iv. 42d).
However, it then goes on to note that a different etymology derives from it from the Hebrew root פלל. This is the origin that Klein provides in his entry for the verb פלפל, meaning "to discuss, argue, debate":
Pilp. of base פלל. Whence also Syr. פַּל (= he sprinkled), corresponding to Heb. בְּלֵל, respectively בִּלֽבֵּל. There is no connection between the v. פלפל ᴵ and the n. פִּלְפֵּל (= pepper) as most scholars would have it.
(Interestingly, in his earlier CEDEL, Klein does write that pilpul derives from "he spiced, he seasoned" from which came the meaning "he argued, he debated, he disputed violently.")
As we've discussed before, the root פלל means both "to judge" and "to pray", and according to Klein, originally meant "to cut," and "to decide", which would presumably be his connection to the debates of pilpul.
As often happens, Klein's Hebrew etymological dictionary relies on the Ben Yehuda dictionary, which also denies a connection between pilpul and pepper, and directs us to a 1935 essay by the linguist Hanoch Yelon. Yelon interprets the word תִּתַּפָּל in Shmuel II 22:27 as deriving from פלל, and meaning "to roll (over)" and so the root פלפל (in the sense of analysis) would mean to turn something from side to side while investigating it. This use is found in the midrash (Pesikta Rabbati 21:1) where we read of a warrior who מפלפל בזיינו ומראה פנים לכל צד - "turned his sword about and made it face each direction."
From this, and other examples he brings, Yelon is convinced the connection to pepper is only a folk-etymology. This folk-etymology may go back a long time (see for example this passage from Yoma 85b, which compares a good argument to spicy pepper), but most modern scholars accept that pilpul and pepper aren't related. However, they don't all agree with Yelon's etymology. For example, the Even-Shoshan dictionary says פלפל derives from בלבל, meaning "to confuse, to mix up", although it does give a similar definition of the original meaning of pilpul based on that etymology: "to turn something over and over."
Well, this analysis has gone on quite a bit, and I don't want to be accused of excessive pilpul, so we'll end it here...