The present participle of coemploy; the act of employing someone jointly.
From coemploy + -ing (gerund/progressive suffix). Standard English verb conjugation creating the continuous action form.
The -ing form's versatility is remarkable—'coemploying' can be a verb, a noun, or even an adjective, showing how English reuses forms: 'They are coemploying workers' (verb), 'Coemploying is complex' (noun), 'a coemploying arrangement' (adjective).
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