Meaning

noun any of various platforms built into a vessel

noun street name for a packet of illegal drugs

noun a pack of 52 playing cards

originFrom Middle English dekke, borrowed from Middle Dutch dec (“roof, covering”), from Middle Dutch decken, from Old Dutch thecken, from Proto-West Germanic *þakkjan, from Proto-Germanic *þakjaną. Formed the same: German Decke (“covering, blanket”). Doublet of thatch and thack.

Etymology from Wiktionary, CC BY-SA 3.0