Lexical Definition

‎τετράμηνον‎ tetrámēnon (tet-ram'-ay-non) four months ^G:A
neuter of a compound of ‎τέσσαρες‎ and ‎μήν‎

four months.

• a four months' space

Abbott-Smith

τετράμηνος, -ον [in LXX (neut.): Jg 19:2 A 20:47 A (עַרְבָּעָה חֳדָשִׁים ) * ;]
of four months, four months; as subst., τ. (sc. ὥρα, but neut. in Rec.), Jo 4:35 (Thuc., al.).†

Abbott-Smith References

Liddell-Scott-Jones

τετράμηνος-μηνος, ον,

(μήν) of four months, lasting four months, σπονδαί [Refs 5th c.BC+]; τετράμηνοι ὀχεύουσι at four months old, [Refs 4th c.BC+]; τετράμηνον for a space of four months,[Refs 3rd c.BC+]; ἡ πρώτη τ. [Refs 3rd c.BC+]; so τετράμηνα [Refs 5th c.BC+]