Of uncertain derivation; Thyatira, a place in Asia Minor -- Thyatira.
Thayer's Greek Lexicon
Strong's 2363: Θυάτειρα
Θυάτειρα, Θυατείρων, τά (and once Θυατειρας, ἡ, Revelation 1:11 Lachmann Θυατειραν (cf. Tdf. at the passage; WHs Appendix, p. 156; Buttmann, 18 (16))), Thyatira, a city of Lydia, formerly Pelopia and Euhippia (Pliny, h. n. 5, 31), now Akhissar, a colony of Macedonian Greeks, situated between Sardis and Pergamum on the river Lycus; its inhabitants gained their living by traffic and the art of dyeing in purple: Acts 16:14; Revelation 1:11; Revelation 2:18, 24. (B. D. under the word.)
Acts 16:14 - N-GNP GRK:πορφυρόπωλις πόλεως Θυατείρων σεβομένη τὸν NAS: from the city of Thyatira, a seller of purple fabrics, KJV: of the city of Thyatira, which worshipped INT: a seller of purple of [the] city of Thyatira who worshipped
Revelation 1:11 - N-ANP GRK:καὶ εἰς Θυάτειρα καὶ εἰς NAS: and to Pergamum and to Thyatira and to Sardis KJV: and unto Thyatira, and unto INT: and to Thyatira and to
Revelation 2:18 - N-DNP GRK:τῆς ἐν Θυατείροις ἐκκλησίας γράψον NAS: of the church in Thyatira write: KJV: in Thyatira write; INT: of the in Thyatira church write
Revelation 2:24 - N-DNP GRK:τοῖς ἐν Θυατείροις ὅσοι οὐκ NAS: to you, the rest who are in Thyatira, who KJV: in Thyatira, as many as INT: who [are] in Thyatira as many as not