Thirst
Old English thurst (noun), thyrstan (verb), of Germanic origin; related to Dutch dorst, dorsten and German Durst, dürsten .
wiktionary
From Middle English thirst, thurst, from Old English þurst, from Proto-West Germanic *þurstu, from Proto-Germanic *þurstuz, from Proto-Indo-European *ters-(“dry”).
Germanic cognates include Old High German thurst, Middle High German durst, German Durst, Old Saxon thurst, Old Dutch thursti, Middle Dutch dorst, dorste, Dutch dorst, Old Norse þorsti (Swedish törst, Icelandic þorsti, Danish tørst, Norwegian tørst). Indo-European cognates include Ancient Greek τέρσομαι(térsomai), Albanian djersë(“sweat”), Sanskrit तृष्णा(tṛṣṇā, “desire; thirst”), Sanskrit तृष्यति(tṛ́ṣyati), Latin terra.
etymonline
thirst (n.)
Old English þurst, from Proto-Germanic *thurstu- (source also of Old Saxon thurst, Frisian torst, Dutch dorst, Old High German and German durst), from Proto-Germanic verbal stem *thurs- (source also of Gothic thaursjan, Old English thyrre), from PIE root *ters- "to dry." Figurative sense of "vehement desire" is attested from c. 1200.
thirst (v.)
Old English þyrstan "to thirst, thirst after," from the noun (see thirst (n.)); the figurative sense of the verb was present in Old English. Compare Old Saxon thurstian, Dutch dorsten, Old High German dursten, German dürsten, all verbs from nouns. Related: Thirsted; thirsting.
