ἴς

A. ἴνεσι Il. 23.191, also ἰσίν Sor. (v. infr.), Suid. s.v. ἶνες, cj. Nauck for εἰσίν in A. Fr. 229:— sinew, tendon, sg. once in Hom., ὡς δ’ ὅτ’ ἂν . . ἀνὴρ . . ἶνα τάμῃ διὰ πᾶσαν Il. 17.522: usu. in pl., sinews, οὐ γὰρ ἔτι σάρκας τε καὶ ὀστέα ἲνες ἔχουσιν Od. 11.219, cf. Il. 23.191; ἶνες ἄρθρων Ar. Pax 86, cf. Archil. 138; ἶνες αὐτὸ μόνον καὶ λεπτὴ δορά, of a person wasted by disease, Ph. 2.432; δοράς, σάρκας, ἶνας ib.527: metaph., Τρωίας ἶνας ἐκταμὼν δορί Pi. I. 8(7).57.
2. later, the fibrous vessels in the muscles, Pl. Ti. 84a, Arist. HA 515b27, al.; in blood, fibrine, Id. PA 650b14, cf. Pl. Ti. 82c, Meno Iatr. 17.34: metaph., of metals, Plu. 2.434b.
3. rib in the leaves of plants, Thphr. HP 3.12.7 (sg.).
4. strip of papyrus, ταῖς τῶν χαρτῶν ἰσίν Sor. 1.13: sg., Gal. 10.1000.
b. λεπτὴ ἴς a small fibre of papyrus, Id. 17(1).795.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project