Lexical Definition

‎ἀστεῖος‎ asteîos (as-ti'-os) beautiful ^G:A
from (a city)

fair.

• urbane, i.e. (by implication) handsome

Abbott-Smith

ἀστεῖος, -ον (< ἄστυ, a city), [in LXX: Ex 2:2 (טוֹב), Nu 22:32 (οὐκ ἀ. ירט), Jg 3:17 (בָּרִיא), Jth 11:23, Da LXX, Sus 7, II Mac 6:23*;]
1. of the town.
2. (Like Lat. urbanus),
(a) courteous,
(b) elegant (in π., of clothing, MM, s.v.), comely, fair (as in Ex 2:2), He 11:23, Ac 7:20.†

Abbott-Smith References

Liddell-Scott-Jones

ἀστεῖος, α, ον,

also ος, ον [Refs 4th c.BC+]: (ἄστυ):— of the town (but in the literal sense ἀστικός is used).

__II town-bred, polite, [Refs 5th c.BC+]; opposed to ἄγροικος, [ἀστεῖος οἰκῶν ἐν πόλει 7th-6th c.BC: Alcaeus Lyricus Comedy texts 26">Refs 7th c.BC+]; charming, [Refs 5th c.BC+]
__II.2 of thoughts and words, refined, elegant, witty, διάλεκτον ἀστείαν ὑποθηλυτέραν, opposed to ἀνελεύθερον ὑπαγροικοτέραν, [Refs 5th c.BC+]; ἀστεῖον λέγεις (where there is a play on the double sense, witty and popular) [Refs 5th c.BC+]; of persons, οἱ ἀ. the wits,[Refs 5th c.BC+]; τὰ ἀ. witty sayings, witticisms, [Refs 4th c.BC+] adverb -ως[Refs 1st c.AD+]
__II.3 as a general word of praise, of things and persons, pretty, charming, βοσκήματε[Refs 5th c.BC+]; ἀστεῖόν [ἐστι] ὅτι ἐρυθριᾷς it is charming to see you blush, [Refs 5th c.BC+]; ἀστεῖον πάνυ εἰ.. [Refs 4th c.BC+]
__II.3.b ironically, ἀ. κέρδος a pretty piece of luck, [ἀστεῖος εἶ 4th-3rd c.BC: Diphilus Comicus 73. ">Refs 5th c.BC+]
__II.4 of outward appearance, pretty, graceful, [LXX+4th c.BC+]; handsome, [LXX]: in Comedy, of dainty dishes, κραμβίδιον, κρεΐσκον, [Refs 4th c.BC+]
__II.5 good of its kind, αἷμα[Refs 5th c.BC+]; of persons, good, [Refs 1st c.AD+]; ἀστεῖα good qualities, opposed to φαῦλα, [Refs 4th c.BC+]adverb -είως honourably, πράττων[LXX+1st c.AD+]

_{LSJ Scripture Refs: LXX.Exod.2.2 ☩ LXX.Josh.3.17}