LSJ
ον, offered at the public hearth, τὸ ἐ. θῦμα οἶν Inscr.Magn. 36.20 (Ithaca); — also ἐνίστιος, ον, ib. 72.40 (Syrac.); — Subst. ἐνέστιον (sc. θῦμα), τό, ib. 42.12 (Corinth); — Arc. ἰνίστιον ib. 38.41 (Megalop.).
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)