διπλ-όω,
I repeat a process, Arist. APo. 91a21; double, τρίβωνα, of philosophers, D.L. 6.22; multiply by two, Vett.Val. 159.27: - Pass., ἐδεδίπλωτο ἡ φάλαγξ X. HG 6.5.19; of swords, to be bent double, Plu. Cam. 41; of a bow-string, Ach.Tat. 3.8; of fevers (cf. διπλοῦς), Gal. 7.472; δεδιπλωμένον ἔμβρυον, of position of foetus at birth, Aspasia ap. Aët. 16.22, cf. Sor. 2.55.
II repay twofold, δ. διπλᾶ κατὰ τὰ ἔργα αὐτῆς [Rev 18:6].
G1363 — διπλόω
διπλῷ: (1 aorist ἐδιπλωσα); (διπλως); to double: διπλώσατε αὐτῇ (only R G) διπλᾶ (τά διπλᾶ T Tr WH brackets), i. e. return to her double, repay in double measure the evils she has brought upon you, [Rev 18:6] (R. V. double unto her the double). (Xenophon, Hell. 6, 5, 19; Plutarch, Cam. 41; (Diogenes Laërtius 6, 22.)