variant spelling of even (adj.), now archaic or poetic. E'enamost "even almost" is recorded from 1735 in Kentish speech.

1982, short for electronic mail (1977; see electronic + mail (n.1)); this led to the contemptuous application of snail mail (1983) to the old system.

Even aerial navigation in 1999 was found too slow to convey and deliver the mails. The pneumatic tube system was even swifter, and with such facilities at hand it is not surprising that people in San Francisco received four daily editions of the Manhattan journals, although the distance between Sandy Hook and the Golden Gate is a matter of 3,600 miles. ["Looking Forward," Arthur Bird, 1899]

Associated Press style guide collapsed it to email 2011.

bacteria inhabiting the gut of man and animals, by 1921, short for Escherichia coli (1911), named for German physician Theodor Escherich (1857-1911) with Latin genitive of colon "colon" (see colon (n.2)).

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").

abbreviation of estimated time (of) arrival, attested by 1939.