seethe
Seethe (verb) means of a liquid or other substance, or a container holding it: to be boiled (vigorously); to become boiling hot.
Etymology
The verb comes from Middle English sethen, seeth (“to boil, seethe; to cook; etc.”) and other forms, from Old English sēoþan (“to boil, seethe; to cook; etc.”), from Proto-West Germanic *seuþan, from Proto-Germanic *seuþaną (“to boil, seethe”), from Proto-Indo-European *h₂sewt-, *h₂sew-, *h₂sut- (“to move about, roil, seethe”). The noun comes from the verb. Cognates include Danish syde (“to seethe, boil”), Dutch zieden (“to boil, seethe”), German sieden (“to boil, seethe”), Gothic ????? (sauþs, “burnt offering, sacrifice”), Icelandic sjóða (“to boil, seethe”), Low German seden (“to seethe”), Norwegian Bokmål syde (“to boil, seethe”), Norwegian Nynorsk sjoda, syda (“to boil, seethe”), Scots seth, seith (“to seethe”), Swedish sjuda (“to boil, seethe”), and West Frisian siede (“to boil”).