Resembling, characteristic of, or somewhat like a foe; having enemy-like qualities.
From 'foe' (enemy) plus the adjective-forming suffix '-ish' (having the quality of), expressing something as bearing foe-like characteristics.
The suffix '-ish' is English's favorite way to soften or qualify—'foeish' means sort-of hostile, which is much more nuanced than just calling someone a foe outright.
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