συγκινδυνεύειν
From LSJ
Νόμιζ' ἀδελφοὺς τοὺς ἀληθινοὺς φίλους → Veros amicos alteros fratres puta → für deinen Bruder halte einen wahren Freund
Greek > English (Woodhouse Verbs Reversed)
(see also συγκινδυνεύω): share a risk with others, share dangers