consanguinea
From LSJ
Ῥῦσέ με δεινῶν νοσημάτων, ἱερώτατε, ἱερωσύνην συναρμόσας ἐν χαρᾷ και ἐπιστήμης τὸ πολύτιμον κεφάλαιον → Deliver me from grievous afflictions, most holy one, joining sanctity together in joy with the precious fountainhead of knowledge
Latin > English
consanguinea consanguineae N F :: sister; kin, blood relation; kindred/relations (pl.)
Latin > French (Gaffiot 2016)
cōnsanguĭnĕa,¹⁶ æ, f., sœur : Catul. 64, 118.