II. intr., strike against, collide with, “πυρί” Pl.Ti.43c, cf. Epicur. Ep.2p.38U., Nat.2.3; “πρός τι” Zen.3.29: abs., stumble, fall, D.18.254: metaph. of failure or defeat, “μικρὰ προσκρούσας” Plu.Sull.11, cf. Luc.17.
III. metaph., have a collision with another, give offence, “τὸ π. καὶ φιλονικεῖν περί τινος” D.5.25, cf. 21.61: c. acc. cogn., “ἂ προσέκρουον” Id.19.205; “π. τισί” Plu.Them.20, Fab.26, POxy.531.10 (ii A.D.).
2. take offence at, be angry with, τινι D.24.6; “ἀλλήλοις” Din.1.99, Arist.Pol.1263a18; “προσκρούσας τι τούτῳ” Aeschin.1.110, cf. D.33.7; “φιλοσοφίᾳ” Plu.Cat.Ma.23: abs., Pl.Phd.89e; “τῶν φίλων οἱ προσκεκρουκότες” Arist.EN1166a6.