Definition of -o- in English:

-o-

suffix

Used as the terminal vowel of combining forms: chemico- Gallo-

Origin

from Greek.

Usage

The suffix -o- is often elided before a vowel, as in neuralgia.

Definition of -o- in:

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Word of the day inamorata
Pronunciation: ɪˌnaməˈrɑːtə
noun
a person's female lover