Lexical Definition

‎μεσόω‎ mesóō (mes-o'-o) be in the middle G:V
from ‎μέσος‎

be about the midst.

Usage: 2 forms in 6 verses
Form Translated As     In Verse(s)
μεσούσησ being in the middle John.7.14
in the middle LXX.Exod.12.29LXX.Jer.15.9
middle LXX.Judg.7.19LXX.Neh.8.3
μεσούντοσ being in the middle LXX.Exod.34.22

Abbott-Smith

μεσόω, -ῶ (< μέσος), [in LXX: μεσούσης τ. νυκός, Ex 12:29 (חֲצִי), etc.;]
to be in the middle, esp. of time: τ. ἑορτῆς μεσούσης, in the middle of the feast, Jo 7:14.†

Abbott-Smith References

Book Refs
Exodus 12:29
John 7:14

Liddell-Scott-Jones

μεσόω,

(μέσος) to be in or at the middle, τόδ᾽ ἴσθι, μηδέπω μεσοῦν κακόν [Refs 5th c.BC+]; especially of Time, μεσοῦσα ἡμέρη midday, [Refs 5th c.BC+]; θέρους μεσοῦντος in midssummer, [Refs 5th c.BC+]; πρὸς ἥλιον μεσοῦντα to wards midday, [Refs 4th c.BC+]

__2 with genitive, to be in the middle of, τῆς ἀναβάσιος [Refs 5th c.BC+]; μεσοῦντα τῆς ἀρχῆς in the middle of his time of office, [Refs 4th c.BC+]: and with participle, μεσοῦν δειπνοῦντας [Refs 5th c.BC+]