Webster's Revised Unabridged Dictionary · 1913

Agist

Agist ({not transcribed}) , transitive verb

[Old French agister; à (Latin ad) + gister to assign a lodging, from giste lodging, abode, French gîte, Late Latin gistum, gista, from Latin jacitum, past participle of jacēre to lie: compare Late Latin agistare, adgistare. See Gist.]

(Law) To take to graze or pasture, at a certain sum; -- used originally of the feeding of cattle in the king's forests, and collecting the money for the same. — Blackstone