Meaning

adjective causing or able to cause nausea

adjective feeling nausea; feeling about to vomit

adjective causing or fraught with or showing anxiety

originFrom Middle English coysy, possibly from Old Norse kveisa (“boil”) ( > Norwegian kveise/kvise), perhaps influenced by Anglo-Norman queisier, from Old French coisier (“to wound, hurt, make uneasy”).

Etymology from Wiktionary, CC BY-SA 3.0