συγκάμνειν
From LSJ
Cras amet qui numquam amavit quique amavit cras amet → May he love tomorrow who has never loved before; And may he who has loved, love tomorrow as well.
Greek > English (Woodhouse Verbs Reversed)
(see also συγκάμνω): labor with, labour with, sympathise with in sorrow, sympathise with, work with others, work with