κεραία
ἡ
A.
horn, Nic. Th. 36, Opp. C. 3.476.
2.
antennae of the crayfish or of insects, Arist. HA 526a6. 532a26.
II.
anything projecting like a horn: hence,
1.
yard-arm, A. Eu. 557 (lyr.), Th. 7.41, IG 22.657, 1604.17, PMagd. 11.4 (iii B.C.), etc.; κ. καθελέσθαι, ὑφιέναι, i.e.lower sail, Plb. 14.10.11, Plu. 2.169b; opp. ἐντείνασθαι Call. Fr.anon. 382; ἀπὸ ψιλῆς τῆς κ. 'under bare poles', Luc. Tox. 19.
b.
projecting beam of a crane, etc., Th. 2.76, cf.4.100, IG 11(2).161 A 90 (Delos, iii B. C.), Ph. Bel. 100.18, Plb. 8.5.10, Arr. An. 2.19.2.
c.
projecting parts of the hucklebone, Arist. HA 499b30.
d.
branching stake of wood, used as a pale in a palisade, Plb. 18.18.7, App. BC 4.78.
e.
horns of the ancilia, Plu. Num. 13.
2.
pl., horns of the moon, Arat. 785,790.
3.
in writing, apex of a letter, IG 2.4321.10 (iv B.C.), A.D. Synt. 28.27, cf. Ev.Matt. 5.18, Ev.Luc. 16.17, Antyll. ap.Orib. 45.57.4; ζυγομαχεῖν περὶ συλλαβῶν καὶ κ. Plu. 2.1100a; διὰ πάσης κ. διῆκον showing itself in every word of a speech, D.H. Din. 7.
4.
leg of a pair of compasses, S.E. M. 10.54.
5.
projecting spur of a mountain, Plu. Cat.Ma. 13; of the horns of Europe and Africa at the Straits of Gibraltar, AP 4.3b.40 (Agath.); arms of a harbour, Philostr. VS 1.21.2.
6.
= κέρας v. 3, wing of an army, Hld. 9.20.
7.
pl., supposed teat-like projections inside the womb, Diocl.Fr. 27; but the Fallopian tubes, Gal. UP 14.11, Ruf. Onom. 194.
III.
bow made of horn, AP 6.75 (Paul.Sil.).