Where does “swallowtailed” come from?

swallowtailed (English) comes from English tailed, from Middle English tayled, from Middle English tayl, from Old English tæġl, from Proto-Germanic taglą, from Proto-Indo-European doḱ-, from Proto-Indo-European deḱ- — take; perceive.

swallowtailed (English): Having a forked tail like a swallow's

Definitions

  1. Having a forked tail like a swallow's

Ancestry of “swallowtailed”, step by step

swallowtailed traces back through two separate lines of ancestry.

via English tailed

StepLanguageWordMeaning
1Englishtailedsimple past tense and past participle of tail;...
2Middle Englishtayledtailed; Having a part which drags on the floor
3Middle EnglishtaylA tail; The back side or reverse of a creature; A...
4Old Englishtæġltail
5Proto-Germanictagląhair; ponytail; hair of a tail; tail
6Proto-Indo-Europeandoḱ-hair of the tail
7Proto-Indo-Europeandeḱ-take; perceive

via English swallow

StepLanguageWordMeaning
1EnglishswallowTo cause to pass from the mouth into the...
2Middle EnglishswalweA swallow or a swift; The meat of such birds
3Old Englishswealweswallow
4Proto-West Germanic*swalwāswallow (bird)
5Proto-Germanicswalwǭswallow
Every word from Proto-Indo-European deḱ-Every word from Proto-Indo-European doḱ-Every word from Proto-Germanic taglą