Abbott-Smith Manual Greek Lexicon
ῥομφαία (G4501)
7 † ῥομφαία , -ας, ἡ [in LXX chiefly for חֶרֶב ;] a large broad sword , used by the Thracians (v. DB , iv, 634); then generally (in LXX used interchangeably with μάχαιρα , q.v.), a sword : Re 1:16 2:12 , 16 6:8 19:15 , 21 ; metaph., Lk 2:35 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain