Definition of co- in English:

co-

prefix

1(Forming nouns) joint; mutual; common: co-driver co-education
2(Forming adjectives) jointly; mutually: coequal
3(Forming verbs) together with another or others: co-produce
4 Mathematics Of the complement of an angle: cosine
4.1The complement of: co-latitude

Origin

from Latin, originally a form of com-.

Definition of co- in:

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