ὀ
ὀ- ou ὁ-, préfixe marquant l’union, v. ὀπάτριος.
Étym. indo-europ. *sem- ; probabl. éol. p. ἀ cop., v. ἀ- 2.
ὀ–, praefixum, = ὁμο-, s. ὀπάτριος.
ὀ - : ‘prothetic,’ as in ὄβριμος, ὀμίχλη, ὄνομα; ‘copulative,’ as in ὄπατρος, οἰετής.