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excessive (adj.)[excessive 词源字典]: late 14c., from Old French excessif "excessive, oppressive," from Latin excess-, past participle stem of excedere "to depart, go beyond" (see exceed). Related: Excessively; excessiveness.[excessive etymology, excessive origin, 英语词源]
exchange (n.): late 14c., "act of reciprocal giving and receiving," from Anglo-French eschaunge, Old French eschange (Modern French échange), from Late Latin excambium, from excambiare, from Latin ex- "out" (see ex-) + cambire "barter" (see change (v.)). Practice of merchants or lenders meeting to exchange bills of debt led to meaning "building for mercantile business" (1580s).
exchange (v.): late 15c., from Old French eschangier "exchange, barter" (Modern French échanger), from Vulgar Latin *excambiare (source of Italian scambiare); see exchange (n.). Related: Exchanged; exchanging.
exchequer (n.): c. 1300, from Anglo-French escheker "a chessboard," from Old French eschequier, from Medieval Latin scaccarium "chess board" (see check (n.1); also see checker (n.2)). Government financial sense began under the Norman kings of England and refers to a cloth divided in squares that covered a table on which accounts of revenue were reckoned with counters, and which apparently reminded people of a chess board. Respelled with an -x- based on the mistaken belief that it originally was a Latin ex- word.
excise (n.): "tax on goods," late 15c., from Middle Dutch excijs (early 15c.), apparently altered from accijs "tax" (by influence of Latin excisus "cut out or removed," see excise (v.)), traditionally from Old French acceis "tax, assessment" (12c.), from Vulgar Latin *accensum, ultimately from Latin ad- "to" (see ad-) + census "tax, census" (see census). English got the word, and the idea for the tax, from Holland.
excise (v.): "cut out," 1570s, from Middle French exciser, from Latin excisus, past participle of excidere "cut out, cut down, cut off," from ex- "out" (see ex-) + -cidere, comb. form of caedere "to cut down" (see -cide). Related: Excised; excising.
excision (n.): late 15c., from Middle French excision (14c.) and directly from Latin excisionem (nominative excisio) "a destroying," noun of action from past participle stem of excidere (see excise (v.)).
excitable (adj.): c. 1600, from Late Latin excitabilis "inciting, animating," from excitare "stir up, arouse, awaken, incite" (see excite). Related: Excitably; excitability.
excitation (n.): late 14c., from Old French excitation, from Late Latin excitationem (nominative excitatio), noun of action from past participle stem of excitare "to call out, wake, rouse, stir up" (see excite).
excite (v.): mid-14c., "to move, stir up, instigate," from Old French esciter (12c.) or directly from Latin excitare "rouse, call out, summon forth, produce," frequentative of exciere "call forth, instigate," from ex- "out" (see ex-) + ciere "set in motion, call" (see cite). Of feelings, from late 14c. Of bodily organs or tissues, from 1831. Main modern sense of "emotionally agitate" is first attested 1821.
excited (adj.): 1650s, "magnetically or electrically stimulated;" modern sense of "agitated" attested 1855; past participle adjective from excite. Related: Excitedly.
excitement (n.): early 15c., "encouragement;" c. 1600, "something that tends to excite," from excite + -ment. Meaning "condition of mental and emotional agitation" is from 1846.
exciting (adj.): 1811, "causing disease," present participle adjective excite (v.). Sense of "causing excitement" is from 1826. Related: Excitingly.
exclaim (v.): 1560s, back-formation from exclamation or else from Middle French exclamer (16c.), from Latin exclamare "cry out loud, call out," from ex- "out," or else here as an intensive prefix (see ex-) + clamare "cry, shout, call" (see claim (v.)). Spelling influenced by claim. Related: Exclaimed; exclaiming.
exclamation (n.): late 14c., from Middle French exclamation, from Latin exclamationem (nominative exclamatio) "an exclamation" (in rhetoric), "a loud calling or crying out," noun of action from past participle stem of exclamare "cry out loud" (see exclaim).

The punctuation symbol known as the exclamation point (1824) or exclamation mark (1926) was earliest called an exclamation note or note of exclamation (1650s), earlier note of admiration (1610s). Another name for it was shriek-mark (1864).
exclamatory (adj.): 1590s, from Latin exclamat-, past participle stem of exclamare "to call out" (see exclaim) + -ory.
exclude (v.): mid-14c., from Latin excludere "keep out, shut out, hinder," from ex- "out" (see ex-) + claudere "to close, shut" (see close (v.)). Related: Excluded; excluding.
exclusion (n.): c. 1400, from Latin exclusionem (nominative exclusio) "a shutting out," noun of action from past participle stem of excludere "keep out, shut out" (see exclude).
exclusionary (adj.): "tending to exclude," 1817, from exclusion + -ary.
exclusive (adj.): mid-15c., "so as to exclude;" 1560s, "that excludes," from Medieval Latin exclusivus, from exclus-, past participle stem of excludere (see exclude). Of monopolies, rights, franchises, etc., from 1760s; of social circles, clubs, etc., "unwilling to admit outsiders," from 1822. Related: Exclusively; exclusiveness.