Quick Definition
ἐμπρήθω v. I burn, set on fire, suffer inflammation
Strong's Definition
from 1722 and pretho (to blow a flame); to enkindle, i.e. set on fire
KJV Usage: burn up
UBS Dictionary of the Greek New Testament
verb | aor. ἐνέπρησα | πίπρημι
14.65 · (ἐμπίμπρημι) · Physical Events and States · Burning
to ignite, to kindle, to set ablaze, to start a fire, to light a lamp to cause the process of burning to begin As already noted in the series of terms listed in 14.63, languages differ appreciably in terms employed for different phases and results of burning. For example, to set something on fire for the sake of providing warmth may be expressed by quite a different term from that which is used in speaking of the process of setting something on fire in order to destroy it.
ἐμπίπρημι refers specifically to the process of setting something on fire, but obviously the implication in MAT 22:7 is that the city was burned down. A number of translations, therefore, follow the implied component of ἐμπίπρημι and translate ‘he burned down their city.’ In some languages it may seem strange to speak of ‘burning down a city.’ A more natural expression would be ‘to burn down all the buildings of the city.’
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἐμ-πρήθω : 1 aor. ἐνέπρησα; fr. Hom. down; Sept. for yw and MXN; 10. burn; destroy by fire: τὴν πόλιν, Mt. ΣΤ: (ip
Mounce Concise Greek Dictionary
ἐμπίμπρημι empimprēmi 1x
also spelled ἐμπίπρημι and ἐμπρήθω, to set on fire, burn down, Mt. 22:7*
Abbott-Smith Greek Lexicon
ἐμ-πίπρημι,
ἐμπρήθω (for the form, v.s. ἐμπίπλημι, and cf. Veitch, s.v. πίμπρημι), [in LXX chiefly for שָׂרַף ;]
to set on fire: πόλιν, Mt 22:7; pass., of the body, to become inflamed: Ac 28:6 (T; πίμπρημι WH, q.v.).†
Liddell-Scott-Jones — Greek-English Lexicon
ἐμπρήθω (emprēthō) — to burn. ἐμ-πρήθω, blow up, inflate, of the wind, ἐν δ᾽ ἄνεμος πρῆσεν μέσον ἱστίον [Refs 8th c.BC+]:—passive, to be bloated or swollen, ἐμπεπρησμένης ὑός [Refs 5th c.BC+]
II. burn, ἐνέπρηθον μέγα ἄστυ [Refs 8th c.BC+]:—passive, [Refs 1st c.AD+]; compare ἐμπίμπρημι.