Lexical Definition

‎θερμαίνω‎ thermaínō (ther-mah'-ee-no) to warm G:V
from ‎θέρμη‎

(be) warm(-ed, self).

Usage: 12 forms in 17 verses
Form Translated As     In Verse(s)
ἐθερμαίνοντο they were warming themselves John.18.18
θερμανθείσ heating LXX.Isa.44.16
θερμανθήσεται shall be heated LXX.1Kgs.1.2
θερμανθή shall he heat LXX.Eccl.4.11
should be heated LXX.Ezek.24.11
θερμαινόμενοσ warming himself Mark.14.54John.18.18John.18.25
θερμαινόμενον warming himself Mark.14.67
θερμαίνεσθε do be warmed Jas.2.16
εθερμαίνετο warmed LXX.1Kgs.1.1
εθερμάνθητε heated LXX.Hag.1.6
εθερμάνθησαν They were all heated LXX.Hos.7.7
heated LXX.Job.31.20
εθερμάνθην I was heated LXX.Isa.44.16
εθερμάνθη he warms himself LXX.Isa.44.15
heated LXX.Ps.39.3

Abbott-Smith

θερμαίνω (< θερμός), [in LXX chiefly for חמם;]
to warm, heat; mid., to warm oneself: Mk 14:54, 67, Jo 18:18, 25, Ja 2:16.†

Abbott-Smith References

Book Refs
Mark 14:54 · 14:67
John 18:18 · 18:25
James 2:16

Liddell-Scott-Jones

θερμαίνω,

aorist ἐθέρμηνα [Refs 8th c.BC+]: perfect τεθέρμαγκα [Refs 5th c.AD+] see at {κεχλίαγκα}: perfect passive τεθέρμασμαι [Refs 5th c.BC+]: (θερμός): —warm, heat, εἰς κε θερμὰ λοετρὰ.. Ἑκαμήδη θερμήνῃ [θερμαίνων χθόνα 5th c.BC: Euripides Tragicus “Bacchae” 679, compare 4th-5th c.BC: Aeschylus Tragicus “Persae” 505; τὸ χαλκίον θέρμαινε 5th c.BC: Eupolis Comicus 108 ">Refs 8th c.BC+]:—middle, cause to be warmed, τῇ ἐρωμένῃ χαλκία δύο ὕδατος [Refs 3rd c.BC+]:—passive, to be heated, [Refs 8th c.BC+]; feel the sensation of heat, [Refs 5th c.BC+]; to be or grow feverish, [Refs 5th c.BC+].ι; to be parched, of roots, [Refs 5th c.BC+]

__2 metaphorically, θ. φιλότατι νόον [Refs 5th c.BC+]; πολλὰ θερμαίνοι φρενί is probably falsa lectio for{π. θ. φρένα}, [Refs 4th c.BC+] —passive, κεναῖσιν ἐλπίσιν θερμαίνεται glows with hope, [Refs 5th c.BC+]; χαρᾷ θ. καρδίαν have one's heart warm with joy, [Refs 5th c.BC+]