Origin of soyaDutch soja; see soy.
(plural not attested)
- soya bean
Variant of soy
- soy sauce
- the soybean plant or its seeds
Also Chiefly Brit.soya
Origin of soyJapanese probably dialect, dialectal variant, variety of Sino-Japanese shōyu ; from shō, rice, wheat, or beans fermented and amp; steeped in brine + yu, oil