Where does “cáy lài vai” come from?

cáy lài vai (Tày) comes from Vietnamese lại, from Chinese 賴, from English line, from Middle English line, from Old English līne, from Proto-West Germanic *līnā, from Proto-Germanic līnǭ, from Proto-Germanic līną — flax.

Ancestry of “cáy lài vai”, step by step

cáy lài vai traces back through two separate lines of ancestry.

via Vietnamese lại

StepLanguageWordMeaning
1Vietnameselạiagain; on the other hand, meanwhile; to come
2Chinese
3EnglishlineA path through two or more points (compare ‘segment’); a continuous mark, including as made by a pen; any path, curved or straight
4Middle Englishlinerope, cord; line, rule, ruler, measure; rule,...
5Old Englishlīneline, rope, cord; line, cable, rope, hawser,...
6Proto-West Germanic*līnāline, chord, rope, string
7Proto-Germaniclīnǭthat which is made of flax; line, chord, rope,...
8Proto-Germaniclīnąflax
9Proto-Indo-Europeanlīno-flax

via Tày cáy

StepLanguageWordMeaning
1Tàycáychicken
Every word from Proto-Indo-European līno-Every word from Proto-Germanic līnąEvery word from Proto-Germanic līnǭ