Henry George Liddell, Robert Scott, A Greek-English Lexicon

A.fiftieth, Pl. Tht. 175b.

II. Subst. πεντηκοστή , ἡ,

1. (sc. μερίς), fiftieth part : hence, tax of two per cent. on exports and imports, at Athens, And.1.133, D.59.27 : pl., Id.24.120 ; “ἐς Ἀθάνας πεντηκοστὰ τῶν λίθων” IG 42(1).103.46 (Epid.) ; at Delos, ib.22.1635.38 (iv B. C.), 11(2).161 A 26 (iii B. C.) ; at Halicarnassus, OGI 46.12 (iii B. C.) ; τῶν πρηθέντων τελείτω π. SIG 229.5 (Erythrae, iv B. C.) ; = Lat. quinquagesima, D.C.55.31 (s. v. l.) : metaph., ταύτην ευὕρηκε Μειδίας καινὴν ἱππικήν τινα πεντηκοστήν invented a new sort of composition of two per cent. in lieu of his cavalry service, i. e. paid this instead of it, D.21.166.

2. (sc. ἡμέρα), fiftieth day (after the Passover), Pentecost, LXX 2 Ma. 12.32 ; ἡ ἡμέρα τῆς Π. Act.Ap. 2.1.