πῆχυς, genitive πηχεως (not found in the N. T.), genitive plural πηχῶν contracted from Ionic πήχεων (Joh_21:8; Rev_21:17; 1Ki_7:3 (15), 39 (2); Est_7:9; Eze_40:5) according to later usage, for the earlier and Attic πήχεων, which is common in the Sept. (cf. Lob. ad Phryn., p. 245f; (WHs Appendix, p. 157); Winer's Grammar, § 9, 2 e.), ὁ, the forearm i. e. that part of the arm between the hand and the elbow-joint (Homer, Odyssey 17, 38; Iliad 21, 166, etc.); hence, a cubit (ell, Latinulna), a measure of length equal to the distance from the joint of the elbow to the tip of the middle finger (i. e. about one foot and a half, but its precise length varied and is disputed; see B. D., under the phrase, Weights and Measures, II. 1): Mat_6:27; Luk_12:25 (on these passages, cf. ἡλικία, 1 a.); Joh_21:8; Rev_21:17. (The Sept. very often for ΰΗξΘΜδ.)

πῆχυς pēchus 4x pr. cubitus, the forearm; hence, a cubit, a measure of length, equal to the distance from the elbow to the extremity of the middle finger, usually considered as equivalent to a foot and one half, or 17 inches and one half, Joh_21:8 ; Rev_21:17 ; met. of time, a span, Mat_6:27 ; Luk_12:25

πῆχυς , -εως gen . pl ., -ῶν (for Att. . -εων , v. WH , App ., 157; Thackeray, Gr. , 151; Deiss., BS , 153), [in LXX chiefly and freq . for H520 ;] 1. the forearm ( Hom .). 2. As a measure of length, a cubit: Mat_6:27 , Luk_12:25 , Joh_21:8 , Rev_21:17 .†

πῆχυς [page 512] For πῆχυς in its original meaning of forearm, cf. P Amh II. 102 .9 (A.D. 180) οὐλὴ π [ή ]χι δεξιῷ , a scar on the right forearm. As a measure of length, a cubit, about one and a half feet (cf. Hultsch, Archiv iii. p. 438 ff.), the word hardly needs illustration, but we may cite one or two exx. of the contr. πηχῶν (for πηχέων ) as in Joh_21:8 , Rev_21:17 P Petr II. 41 .2 f. (iii/B.C.) πηχῶν ῑθ̄ πλάτος πηχῶν ῑη̄ εἴσοδος , P Par 14 .14 (B.C. 127) πηχῶν δέκα ἕξ , and P Lond 154 .9 (A.D. 68) (= II. p. 179) ἔξοδος κοινὴ πλα̣τ̣ο̣υς πηχῶ [ν ] τ [ριῶ ]ν : other exx. in Mayser Gr. i. p. 267. and for the LXX usage see Thackeray Gr. i. p. 151. On the possibility that πῆχυς may refer to extension of time in Mat_6:27 ( Luk_12:25 ) see s.v. ἡλικία . A subst. πηχισμός , which LS describe as Eccl., is not uncommon in connexion with measurements, as of the ground-space occupied by a house in P Strass I. 9 .8 ( c. A.D. 307 or 352) μέτροις ] καὶ πηχισμ̣οῖς καὶ θεμελίοις καὶ τίχεσιν . MGr πῆχυ , cubit : see Thumb Handbook , p. 57.

πῆχυς "the fore-arm", from the wrist to the elbow, Lat. ulna, Xen. , etc.:— generally, "the arm", ἀμφὶ υἱὸν ἐχεύατο πήχεε λευκώ Il. , etc. "the centrepiece, which joined the two horns of the bow", Hom. in pl., "the horns or sides of the lyre", opp. to ζυγόν the bridge, Hdt. as a measure of length, "the distance from the point of the elbow to the end of the little finger", Lat. cubitus or "ulna, a cubit or ell", containing 24 δάκτυλοι or 18 1/4 inches, Hdt. : the π. βασιλήιος was longer by three δάκτυλοι, = 27 δάκτυλοι or 20 1/2 inches, id=Hdt. "a cubit-rule", as we say "a foot-rule, " Ar.

πῆχυς, -εως genitive pl., -ῶν (for Att.. -εων, see WH, App., 157; Thackeray, Gr., 151; Deiss., BS, 153), [in LXX chiefly and frequently for אַמָּה ;] __1. the forearm (Hom.). __2. As a measure of length, a cubit: Mat.6:27, Luk.12:25, Jhn.21:8, Rev.21:17.† (AS)