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EO

1
  1. executive order.

eo-

2
  1. a combining form meaning “early,” “primeval,” used in the formation of compound words:

    Eocene; eohippus.

e.o.

3

abbreviation for

  1. ex officio.

e.o.

1

abbreviation for

  1. ex officio

eo-

2

combining_form

  1. early or primeval

    Eocene

    eohippus

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Word History and Origins

Origin of EO1

< Greek, combining form of ēṓs ( Attic héōs ) dawn; akin to east, Aurora

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Word History and Origins

Origin of EO1

from Greek, from ēōs dawn

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