- doff (v.)
- mid-14c., contraction of do off, preserving the original sense of do as "put." At the time of Johnson's Dictionary [1755] the word was "obsolete, and rarely used except by rustics," but it was saved from extinction (along with don) by Sir Walter Scott. Related: Doffed; doffing.
- don (v.)
- early 14c. contraction of do on (see doff). "After 1650 retained in popular use only in north. dialect; as a literary archaism it has become very frequent in 19th c." [OED]. Related: Donned; donning.
- douse (v.)
- 1550s, "to strike, punch," which is perhaps from Middle Dutch dossen "beat forcefully" or a similar Low German word.
Meaning "to strike a sail in haste" is recorded from 1620s; that of "to extinguish (a light)" is from 1785; perhaps influenced by dout (1520s), an obsolete contraction of do out (compare doff, don). OED regards the meaning "to plunge into water, to throw water over" (c. 1600) as a separate word, of unknown origin, though admitting there may be a connection of some sort. Related: Doused; dousing.
- exuviae (n.)
- "cast-off skins, shells, or other coverings of animals," 1650s, Latin, literally "that which is stripped off," hence "slough, skin," also "clothing, equipment, arms, booty, spoils," from stem of exuere "to doff," from ex- "off" (see ex-) + PIE *eu- "to dress" (also in Latin induere "to dress," reduvia "fragment").
