[ kəʊ ]
■ prefix
1》 (forming nouns) joint; mutual; common: ~author.
2》 (forming adjectives) jointly; mutually: coequal.
3》 (forming verbs) together with another or others: ~produce.
4》 Mathematics of the complement of an angle: cosine.
↘the complement of: ~latitude.
Origin
from L., orig. a form of com- .