Ἰᾶπυξ

English (LSJ)

Ion. Ἰῆπυξ, Ἰάπῠγος, ὁ,
A the NW wind (or rather WNW wind) = ἀργέστης, Arist.Vent.973b14, Mu.394b26.
II Ἰάπῠγες, Ion. Ἰήπῠγες, οἱ, a people of Southern Italy, Hdt.7.170: ἡ Ἰαπυγία, Ion. Ἰηπυγίη, their country, ibid.:—Adj. Ἰᾱπύγιος, Ἰαπυγία, Ἰαπύγιον, Iapygian, ἄκρα Th.6.30.

French (Bailly abrégé)

Ἰάπῠγος (ὁ) :
vent ouest-nord-ouest.
Étymologie: Ἰάπυγες.

Russian (Dvoretsky)

Ἰᾶπυξ: Ἰάπῠγος ὁ (= Ἀργέστης) иапиг (зап.-сев.-зап. ветер, дующий от берегов Иапигии в сторону Эллады и, следовательно, попутный для направляющихся сюда судов) Arst.
υγος ὁ Иапиг (сын Ликаона, по друг. сын Дедала, миф. основатель Иапигии и родоначальник иапигов) Plin.

Greek (Liddell-Scott)

Ἰᾶπυξ: Ἰων. Ἰῆπυξ, Ἰάπῠγος, ὁ, ὁ ΒΔ. ἢ μᾶλλον ΔΒΔ. ἄνεμος, καλούμενος καὶ ἀργέστης, Ἀριστ. π. Κόσμ. 4. 12, Ἀποσπ. 238, 11. ΙΙ. Ἰάπῠγες, Ἰων. Ἰήπυγες, οἱ, λαὸς τῆς νοτίου Ἰταλίας, Ἡρόδ. 7. 170· - ἡ Ἰᾱπυγία, Ἰων. Ἰηπυγίη, ἡ χώρα αὐτῶν, αὐτόθι· - ἐπίθ. Ἰᾱπύγιος, α, ον, Θουκ. 6. 30.

Greek Monotonic

Ἰᾶπυξ: Ιων. Ἰῆπυξ, Ἰάπῠγος, ὁ,
I. ΒΔ ή ΔΒΔ άνεμος, σε Αριστ. II.Ἰάπῠγες, Ιων. Ἰήπῠγες, οἱ, λαός, πληθυσμός της Νότιας Ιταλίας, σε Ηρόδ.· ἡ Ἰᾱπῠγία, Ιων. Ἰηπῠγίη, η χώρα των Ιαπύγων, στον ίδ.· επίθ. Ἰᾱπύγιος, -α, -ον, Ιαπυγικός, σε Θουκ.

Wikipedia EN

The Iapygians (Greek: Ἰάπυγες, Ĭāpyges; Latin: Iapyges, Iapygii) were an Indo-European people who inhabited Apulia in classical antiquity. They lived in the eponymous region Iapygia and were divided in three populations: the Daunians, Peucetians and Messapians. Their land was annexed by the Roman Republic, and they were eventually Latinized and assimilated into Roman culture.