A.hurt by striking against a thing, injure, “τὸ γόνυ” Hdt.6.134; “τὸν πόδα” Plu. Ages.3: abs., bump oneself, Pl.R.604c; hurt one's foot, X.HG3.3.3; stumble, Ar.Pl.121; “πρὸς τὸν οὐδόν” Plu.TG17; “ἐν τῇ ὁδῷ” Thphr.Char. 15.8; “πόδεσσι” Q.S. l.c.
2. c. dat. objecti, stumble upon, strike against, “τισὶν ὥσπερ προβόλοις” D.10.63; “τῷ νόμῳ” Porph.Chr.30.
3. generally, to be checked, “πνεῦμα προσπταῖον ἐν τῇ ἄνω φορῇ” Hp.Acut. 42; of the tongue, Arist.Pr.905b30; “προσπταίειν . . ποιεῖ τὸν ἀκροατήν” Id.Rh.1409b19.