Cosy
来自Big Physics
wiktionary
From Scots cosie, from Old Scots colsie, but ultimate derivation is unknown. Possibly of North Germanic origin, such as Norwegian kose seg(“to have a cozy time”), from Old Norse kose sig, from koselig, koslig, perhaps ultimately from Old High German kōsa; see modern German kosen(“to cuddle”).
etymonline
cosy (adj.)
chiefly British form of cozy (q.v.).
