Deck is Dutch, taken in the mid-1400s from Middle Dutch dec, "roof, covering," and it belongs to the great mass of sailing vocabulary English absorbed from Dutch and Low German: sloop, dock, cruise, yacht, skipper and boss all arrived the same way, in the centuries when the Low Countries ran northern European shipping.
The English cousin of the word is a nice surprise. The Germanic root means "to cover," and its native English descendant is thatch — so a ship's deck and a cottage's thatched roof are the same word, one borrowed from Dutch and one inherited directly. English extended the sense early from the covering itself to the platform it formed. A deck of cards is from the 1590s, perhaps because they stack like the decks of a ship; deck-chair from 1844, named for the ocean liners they were used on; and tape deck from 1949, for the flat surface of a reel-to-reel recorder.
deck (n.) mid-15c., dekke , "covering extending from side to side over part of a ship," from a nautical use of Middle Dutch dec , decke "roof, covering," from Proto-Germanic *thakam (source also of thatch (n.)), from PIE root *(s)teg- "to cover." Sense extended early in English from "covering" to "platform of a ship." Meaning "pack of cards necessary to play a game" is from 1590s, perhaps because they were stacked like decks of a ship. Tape-deck (1949) is in reference to the flat surface of old reel-to-reel tape recorders. Deck-chair (1844) so called because they were used on ocean liners. On deck (by 1740) was in nautical use especially "ready for action or duty;" extended sense in baseball, of a batter waiting a turn at the plate, is by 1867. To clear the deck (1852) is to prepare a ship for action; it is perhaps a translation of French débarasser le pont . also from mid-15c. deck (v.1) "adorn, array or clothe with something ornamental" (as in deck the halls ), early 15c., from Middle Dutch decken "to cover, put under roof," a nautical word, from Proto-Germanic *thakjan (source also of Old Frisian thekka , Old High German decchan , German decken ), from PIE root *(s)teg- "to cover." Meaning "to cover, overspread" is from 1510s in English. Replaced Middle English thecchen , from Old English eccan (see thatch (v.), which is a doublet) . Related: Decked ; decking . also from early 15c. deck (v.2) "to knock down," by 1955, probably from deck (n.) on the notion of laying someone out on a ship's deck. Compare floor (v.) "to knock down." Related: Decked ; decking . also from 1955
deck came in through Later and wider borrowings, and its spelling follows that family's conventions.
What gives it away on the page
| sea, trade, and art vocabulary | Dutch and Low German, from centuries of shipping and painting.skipper, deck, yacht, sloop, dock, easel, landscape, boss |
Placing it without the spelling
| sailing, trade, and painting | Dutchdeck, sloop, yacht, easel |
Later and wider borrowings in the spelling guide · guess another word's family