- swallow (v.)
- "take in through the throat," Old English swelgan (class III strong verb; past tense swealg, past participle swolgen), from Proto-Germanic *swelkh-/*swelg- (cf. Old Saxon farswelgan, Old Norse svelgja "to swallow," Middle Dutch swelghen, Dutch zwelgen "to gulp, swallow," Old High German swelahan "to swallow," German schwelgen "to revel"). Related: Swallowed; swallowing, probably from PIE base *swel- "to eat, drink." Cognate with Old Norse svelgr "whirlpool," literally "devourer, swallower." Sense of "consume, destroy" is attested from mid-14c. Meaning "to accept without question" is from 1590s. Related: Swallowed; swallowing. The noun meaning "an act of swallowing" is recorded from 1822.
- swallow (n.)
- migratory bird (family Hirundinidae), Old English swealwe, from Proto-Germanic *swalwon (cf. Old Saxon, Old Norse, Old Frisian, Swedish svala, Danish svale, Middle Dutch zwalewe, Dutch zwaluw, Old High German swalawa, German Schwalbe), from PIE *swol-wi- (cf. Russian solowej, Slovak slavik, Polish słowik "nightinggale"). The etymological sense is disputed. Popularly regarded as a harbinger of summer; swallows building nests on or near a house is considered good luck.