late 14c., "a rising, height of something, height to which something is elevated," from Old French elevation and directly from Latin elevationem (nominative elevatio) "a lifting up," noun of action from past-participle stem of elevare "lift up, raise," figuratively, "to lighten, alleviate," from ex "out" (see ex-) + levare "to lighten; to raise," from levis "light" in weight (from PIE root *legwh- "not heavy, having little weight"). Meaning "act of elevating" is from 1520s.
mid-15c., "small weight of apothecary's measure," a phonetic spelling, from Anglo-Latin dragma, Old French drame, from Late Latin dragma, from Latin drachma "drachma," from Greek drakhma "measure of weight," also, "silver coin," literally "handful" (of six obols, the least valuable coins in ancient Athens), akin to drassesthai "to grasp" (see drachma). The fluid dram is one-eighth of a fluid ounce, hence "a small drink of liquor" (1713). Hence dram shop (1725), where liquor was sold by the shot.
"of greater weight or influence," mid-15c., from Latin praeponderantem (nominative praeponderans), present participle of praeponderare "outweigh; make heavier" (see preponderate). Related: Preponderantly.
late 15c., "to raise above the usual position," from Latin elevatus, past participle of elevare "lift up, raise," figuratively, "to lighten, alleviate," from ex "out" (see ex-) + levare "lighten, raise," from levis "light" in weight (from PIE root *legwh- "not heavy, having little weight"). Sense of "raise in rank or status" is from c. 1500. Moral or intellectual sense is from 1620s. Related: Elevated (which also was old slang for "drunk"); elevating.
1852, in chemistry, back-formation from isomeric. A compound identical or nearly so in composition and molecular weight with another, but having different properties.
1854, spelling variant of carat (q.v.). In U.S., karat is used for "proportion of fine gold in an alloy" and carat for "measure of weight of a precious stone."