συμπαρανέω
From LSJ
ψυχῆς ἀγῶνα τὸν προκείμενον πέρι δώσων → to stand the appointed trial for his life, to stand the appointed struggle for life and death
English (LSJ)
A swim beside together, τοῖς ἰχθύσι ib.33(51).29; so συμπαρα-νήχομαι, Luc.Tox.20.
Greek (Liddell-Scott)
συμπαρανέω: τῷ ἑπομ., τοῖς ἰχθύσι συμπαρανεῖν Ἀριστείδ. τ. 2, σ. 423.