English word coworker comes from English worker, English co-
| Dictionary entry | Language | Definition |
|---|---|---|
| worker | English (eng) | (computing) A thread performing one instance of a particular task within a program.. (rare) A female ant, bee, termite or wasp.. A nonreproductive social insect, such as ant, bee, termite or wasp.. A person who performs labor for a living, especially manual labor. |
| co- | English (eng) | (mathematics) of the opposite, of the counterpart; dual. Partner or subordinate in an activity. To the same degree. Together; mutually; jointly. |
| coworker | English (eng) | Somebody with whom one works; a companion or workmate. |