AVAIL
NOUNS
1200 — GAIN avail, advantage, use, benefit; remedy, help → obs.
VERBS
1200 — GAIN to avail, to help; to be suitable, useful or advantageous; to serve, to suffice → obs.
1315 — YAIN to avail → obs.
1528 — SKILL to avail, to help → arch.
1589 — BESTEAD to avail, to be of service or use to
Lexicophilia 