Usage: 7 forms in 7 verses
Form Translated As     In Verse(s)
καπνισθήσονται they shall smoke LXX.Ps.144.5
καπνιζόμενοσ smoking LXX.Gen.15.17
καπνιζόμενον smoking LXX.Isa.42.3
καπνιζομένων of these smoking LXX.Isa.7.4
καπνίζονται they smoke LXX.Ps.104.32
καπνίζον smoking LXX.Exod.20.18
εκαπνίζετο smoked LXX.Exod.19.18

Liddell-Scott-Jones

καπνίζω (kapnizō) to smoke G:V

καπνίζω-ίζω,

make smoke, i.e. make a fire, Epic dialect aorist 1 κάπνισσαν [Refs 8th c.BC+]; use as a fumigation, τροχίσκον [Refs 7th c.AD+]

__II smoke, blacken with smoke, [Refs 4th c.BC+]:—passive, to be smoked, ἠπίολος φεύγει -όμενος [Refs 4th c.BC+]; of the eyes, suffer from smoke, [Refs]; of cookery, καπνίζωιζομένη τυραννίς empire of the smoke, [Refs 4th c.BC+]; κλίβανος -όμενος smoking furnace, [LXX]
__II.2 intransitive in active, to be black with smoke, perfect κεκάπνικα [καπνίζωίζον LXX.Exod.20.18 ">LXX+5th c.BC+]; κρύσταλλος -ίζουσαsmoky quartz, [καπνίζωίζοντα (variant{-ιῶντα}) καὶ διακαιόμενον 1st-2nd c.AD: Plutarchus Biographus et Philosophus 2.454e. ">Refs 1st c.AD+]

LSJ Scripture Refs: LXX.Gen.15.17LXX.Exod.20.18