Foe

Part of speech: noun (n.)

1. See Fiend, and cf. Feud a quarrel.

2. One who entertains personal enmity, hatred, grudge, or malice, against another; an enemy. A man's foes shall be they of his own household. Matt. x. 36

3. An enemy in war; a hostile army.

4. One who opposes on principle; an opponent; an adversary; an ill- wisher; as, a foe to religion. A foe to received doctrines. I. Watts

Part of speech: verb (v.)

To treat as an enemy. [Obs.] Spenser.