Lexical Definition

‎ὄνος‎ ónos (on'-os) donkey ^G:N-M/F
apparently a primary word

an ass.

• a donkey

Abbott-Smith

ὄνος, -ου, ὁ, ἡ, [in LXX chiefly for חֲמוֹר, also for אָתוֹן, etc.;]
an ass: Mt 21:2, 5(LXX), Lk 14:5, Jo 12:15(LXX); ὁ, Lk 13:15; ἡ, Mt 21:7.†

Abbott-Smith References

Liddell-Scott-Jones

ὄνος, ὁ

and ἡ, ass, once in [Refs 8th c.BC+]; ὄνοι οἱ τὰ κέρεα ἔχοντες, together with a number of fabulous animals, [Refs 5th c.BC+] —frequently in proverbs:

__1 ὄ. λύρας (i.e. ἀκούων), of one who can make nothing of music, [Refs 4th c.BC+]; ὄ. κάθηται, of one who sits down when caught in the game of ὀστρακίνδα, [Refs 2nd c.AD+]; the two proverbs combined by [Refs 5th c.BC+]
__2 περὶ ὄνου σκιᾶς for an ass's shadow, i.e. for a trifle, [Refs 5th c.BC+]
__3 ὄνου πόκαι or πόκες, see at {πόκος} [Refs]; ὄνον κείρεις, of those who attempt the impossible, [Refs 2nd c.AD+]
__4 ἀπ᾽ ὄνου καταπεσεῖν, of one who gets into a scrape by his own clumsiness. with a pun on ἀπὸ νοῦ πεσεῖν, [Refs 5th c.BC+]
__5 ὄνος ὕεται an ass in the rain, of being unmoved by what is said or done, [Refs 5th c.BC+]
__6 ὄ. ἄγω μυστήρια, i.e my part is to carry burdens, [Refs 5th c.BC+]
__7 ὄνων ὑβριστότερος, of wanton behaviour, [Refs 5th c.BC+]
__8 ὦτ᾽ ὄνου λαβεῖν, like Midas, [Refs 5th c.BC+]
__9 ὄ. εἰς ἄχυρα, of one who gets what he wants, [Refs 4th c.AD+]
__10 ὄ. ἐν μελίσσαις, of one who has got into a scrape, [Refs 5th c.BC+]; but ὄ. ἐν πιθήκοις, of extreme ugliness, [Refs 4th c.BC+]; ὄ. ἐν μύρῳ 'a clown at a feast', [Refs]
__11 εἰς ὄνους ἀφ᾽ ἵππων, of one who has come down in the world, [Refs 2nd c.AD+]
__II a fish of the cod family, especially the hake, Merluccius vulgaris, [Refs 5th c.BC+]
__III wood-louse, κυλισθεὶς ὥς τις ὄ. ἰσόσπριος [Refs 5th c.BC+], [Refs 5th c.AD+]
__IV wingless locust, ={τρωξαλλίς}, [Refs 1st c.AD+]
__V ὄνων φάτνη a nebulous appearance between the ὄνοι (two stars in the breast of the Crab), [Refs 4th c.BC+]
__VI ὄνου πετάλειον, ={φύλλον ὀνίτιδος}, [Refs 2nd c.BC+]
__VII from the ass as a beast of burden the name passed to:
__VII.1 windlass, [Refs 5th c.BC+]
__VII.2 the upper millstone which turned round, ὄ. ἀλέτης [Refs 5th c.BC+]see entry {μύλη}; perhaps simply, millstone, [Refs 3rd c.BC+] says that Aristotle also calls the fixed nether millstone ὄνος (but [Refs 4th c.BC+] when the millstone is grinding stone, as it does when no grist is in the mill).
__VII.3 beaker, winecup, [Refs 5th c.BC+]
__VII.4 spindle or distaff, [Refs 2nd c.AD+]
__VII.5 perhaps coping of a wall, [Refs 3rd c.BC+]
__VIII ass's load, as a measure, πυροῦ ὄ. τρεῖς [Refs 1st c.AD+]