Quick Definition
θερμαίνω v. I warm
Strong's Definition
from 2329; to heat (oneself)
KJV Usage: (be) warm(-ed, self)
UBS Dictionary of the Greek New Testament
verb | θερίζω · θερισμός · θεριστής · θέρμη · θέρος
79.73 · (θερμαίνομαι) · Features of Objects · Hot, Lukewarm, Cold
to warm oneself to cause oneself to become warm In some languages a literal meaning of ‘to warm oneself’ would mean ‘to increase in anger,’ and therefore it may be necessary in a case such as MRK 14:67 to say simply ‘when she saw Peter there near the fire.’
MRK 14:54 · MRK 14:67 · JHN 18:18 · JHN 18:18 · JHN 18:25 · JAS 2:16
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
θερμαίνω : Mid., pres. θερμαίνομαι ; impf. ἐθερμαινόμην ; (δερμός) - fr. Hom. down; to make warm, to heat; mid. to warm one’s self: Mk. xiv. 54, 67; Jn. xviii. 18, 25; Jas. ii. 16.
Mounce Concise Greek Dictionary
θερμαίνω thermainō 6x
to warm; mid. to warm one’s self, Mt. 14:54, 67; Jn. 18:18, 25; Jas. 2:16*
Abbott-Smith Greek Lexicon
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.†
Liddell-Scott-Jones — Greek-English Lexicon
θερμαίνω (thermainō) — to warm. 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 ὅ κε θερμὰ λοετρὰ.. Ἑκαμήδη θερμήνῃ [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+]