1680s, abbreviation of Latin exempli gratia "for the sake of example;" from genitive of exemplum "example" (see example) + ablative of gratia "sake, favor, grace" (from suffixed form of PIE root *gwere- (2) "to favor").
e-
E pluribus unum
e'en
e'er
E. coli
e.g.
e.r.a.
e.s.l.
e.t.a.
ea
-ea-
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