BEFOULS

Verb

befouls

Third-person singular simple present indicative form of befoul

Source: Wiktionary

BEFOUL

Be*foul", v. t. [imp. & p. p. Befouled; p. pr. & vb. n. Befouling.] Etym: [Cf. AS. bef; pref. be- + f to foul. See Foul, a.]

1. To make foul; to soil.

2. To entangle or run against so as to impede motion.

Source: Webster’s Unabridged Dictionary 1913 Edition