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ONLINE
ETYMOLOGY DICTIONARY:
- isomer
(n.)
- 1866, back formation from
isomeric;
cf. Gk. isomeres "sharing equality," from iso- (see iso-)
+ meros "part, share" (see merit
(n.)).
- iso-
- word-forming element meaning "equal, similar, identical;
isometric," from comb. form of Gk. isos "equal to, the
same as" (e.g. isometor "like one's mother"). Used
properly only with words of Greek origin; the Latin equivalent is
equi- (see equi-).
-
merit
(n.)
- c.1200, "spiritual credit" (for good works, etc.); c.1300,
"spiritual reward," from O.Fr. merite "wages, pay,
reward; thanks; merit, moral worth, that which assures divine pity,"
and directly from L. meritum "a merit, service, kindness,
benefit, favor; worth, value, importance," neuter of meritus,
pp. of merere, meriri "to earn, deserve, acquire, gain,"
from PIE root *(s)mer- "to allot, assign" (cf. Gk. meros
"part, lot," moira "share, fate," moros "fate,
destiny, doom," Hittite mark "to divide" a
sacrifice).
- WIKIPEDIA