Webster's Revised Unabridged Dictionary · 1913

Infield

Infield , transitive verb

To inclose, as a field. [Rare]

Infield , noun

1.
Arable and manured land kept continually under crop; -- distinguished from outfield. [Scotland] — Jamieson
2.
(Baseball) The diamond; -- opposed to outfield. See Diamond, n., 5.