I.to strike together; ς. τὼ χεῖρε to clap the hands for joy, Xen.; but also to smite them together in grief, Luc.:—Pass. to be applauded, Xen.
II.to hammer or weld together, Ar.: hence, to weld a number of men into one body, i. e. organise them, Dem., etc.:—perf. pass. part. συγκεκροτημένος well-trained, in good discipline, Xen., Dem.