1. to mix together, commingle , (Homeric Hymns); to mix one thing with another, τί τινι (Herdotus Historicus), attic; with accusative only, συμμίξαντες τὰ στρατόπεδα having combined them, (Herdotus Historicus):—;Pass. of a river, to be mingled with another river, with dative, (Iliad by Homer): to join forces , of two armies, (Thucydides):—;metaphorically, οὐδείς [ ἐστι] τῷ κακὸν οὐ συνεμίχθη there is none who has not misery as an ingredient in his nature , (Herdotus Historicus); συμμιγέντων τούτων πάντων when all these things happened together , (Herdotus Historicus)

2. to unite , θεοὺς γυναιξί (Homeric Hymns):—;Pass. to have intercourse with , with dative, (Herdotus Historicus)

3. metaphorically, ς. τινὰ τύχᾳ to make him acquainted with fortune, (Pindar); πρῆγμα συμμῖξαί τινι to communicate a matter to another, (Herdotus Historicus)

4. intransitive in Act. to have intercourse with, to associate or communicate with others, with dative, (Theognis Elegiacus), etc.; ς. πρός τινα to join him, (Xenophon Historicus):—;generally, to meet for conversation or traffic , (Herdotus Historicus); ς. τινί to converse with , (Herdotus Historicus)

5. in hostile sense, to meet in close fight, come to blows, engage , τινί with one, (Herdotus Historicus), etc.

6. generally, to meet , (Xenophon Historicus) (ML)