early 15c. "strip or divest of all covering, lay bare" (implied in denuded), from Latin denudare "to lay bare, strip; uncover, expose," from de "away" (see de-) + nudare "to strip," from nudus "naked, bare" (see naked). In geology, "to wear away and remove surface matter, make bare the underlying rocks" (1845). Related: Denuding.
early 15c., denudacioun, "act of stripping off covering, a making bare," from Late Latin denudationem (nominative denudatio), noun of action from past-participle stem of Latin denudare "to lay bare, strip; uncover, expose," from de "away" (see de-) + nudare "to strip," from nudus "naked, bare" (see naked). Figurative use is from 1590s. In geology, "erosion," from 1811.
"cause to mix with carbonic acid or other gas," 1794 (implied in aerated), from aer/aër (used in old science for specific kinds of air, a sense later given to gas (n.1)), from Latin aer (see air (n.1)) + verbal suffix -ate (2). Meaning "expose to air" is from 1799, probably a back-formation from aeration. Related: Aerating.
early 15c., "accusation," from Late Latin detectionem (nominative detectio) "an uncovering, a revealing," noun of action from past-participle stem of detegere "uncover, expose," figuratively "discover, reveal, disclose," from de "un-, off" (see de-) + tegere "to cover," from PIE root *(s)teg- "to cover." From 1610s as "discovery, finding by search or observation," especially "act of finding out and bringing to light."
c. 1400, revelen, "disclose, divulge, make known (supernaturally or by divine agency, as religious truth)," from Old French reveler "reveal" (14c.), from Latin revelare "reveal, uncover, disclose," literally "unveil," from re- "back, again," here probably indicating "opposite of" or transition to an opposite state (see re-) + velare "to cover, veil," from velum "a veil" (see veil (n.)). Related: Revealed; revealer; revealing. Meaning "display, make clear or visible, expose to sight" is from c. 1500.
c. 1300, "unfold, spread out, unfurl" (a banner, etc.), from Old French desploiir (Modern French déployer) "unfold, unfasten, spread out" (of knots, sealed letters, etc.), from Latin displicare "to scatter," in Medieval Latin "to unfold," from dis- "un-, apart" (see dis-) + plicare "to fold" (from PIE root *plek- "to plait").
Properly of sails or flags (and unconnected to play); meaning "reveal, exhibit, expose to view" is late 14c.; sense of "reveal unintentionally, allow to be seen" is from c. 1600. Related: Displayed; displaying.
mid-15c., protraccioun, "drawing or writing of numbers," from late Old French protraction (15c.) and directly from Late Latin protractionem (nominative protractio) "a drawing out or lengthening," noun of action from past-participle stem of Latin protrahere "to draw forward, draw out, bring forth;" figuratively "bring to light, reveal, expose," from pro "forward" (see pro-) + trahere "to draw" (see tract (n.1)). Meaning "act of drawing out or prolonging" is from 1530s.