Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
θερινώ harvest LXX.Judg.3.20
θερινόν harvest LXX.Amos.3.15
θερινήσ at harvest LXX.Dan.2.35

Liddell-Scott-Jones

θερινός (therinos) a harvest G:A

θερινός, , όν,

= θέρειος, [Refs 5th c.BC+]: the usually form in Prose, ἀνατολή [Refs 5th c.BC+]; θ. δύσεις, ἀνατολαί, [Refs 2nd c.AD+]; θ. ζῴδια[Refs 5th c.BC+]; θ. τροπαί or τροπή, the summer solstice,[Refs 5th c.BC+]; θ. κύκλος, Tropic of Cancer, [Refs 1st c.AD+]; θ. τροπικός (i.e. κύκλος) [Refs 3rd c.BC+]; θερινὸν ὑπηχεῖν to echo summer-like, [Refs 5th c.BC+]; θερινά the summer-haunts of the sun, [Refs]; ὄμβροι θ. [Refs 4th c.BC+]; for summer use, ἱμάτιον [Refs 3rd c.BC+]; νομαί, opposed to χειμεριναί, [Refs 2nd c.AD+]