Webster's Revised Unabridged Dictionary · 1913

Underfong

Underfong , transitive verb

[Anglo-Saxon underfongen, past participle of underfōn to undertake; under under + fōn to take. See Fang to seize.]

1.
To undertake; to take in hand; to receive. [Obsolete] — Piers Plowman
2.
To insnare; to circumvent. [Obsolete] — Spenser
3.
To sustain; to support; to guard. [Obsolete] — Nash