"pertaining to the early Stone Age," 1890, from French éolithique (1883), from eo- "earliest" (see eo-) + French lithique, as in néolithique (see neolithic). Related: eolith (1890).
enzyme
eo-
Eocene
Eohippus
eolian
eolithic
eon
EPA
epact
epaulet
epee
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