Where does “sciatica” come from?

sciatica (Italian) comes from Italian sciatico, from Latin sciaticus, from Ancient Greek ἰσχιαδικός, from Ancient Greek ἰσχιάς, from Ancient Greek -ᾰ́ς, from Proto-Indo-European -ónts, from Hungarian önt, from Hungarian ön — sound, voice.

sciatica (Italian): feminine singular of sciatico; sciatica

Definitions

feminine singular of sciatico; sciatica

Ancestry of “sciatica”, step by step

Step	Language	Word	Meaning
1	Italian	sciatico	sciatic
2	Latin	sciaticus	—
3	Ancient Greek	ἰσχιαδικός	of the hips
4	Ancient Greek	ἰσχιάς	hip-disease; sciatica; hip disease
5	Ancient Greek	-ᾰ́ς	group of
6	Proto-Indo-European	-ónts	Derives nouns denoting body parts
7	Hungarian	önt	to pour; to cast; accusative singular of ön
8	Hungarian	ön	you
9	Hungarian	ön-	self-
10	Turkish	ön	front
11	Ottoman Turkish	اوك	voice (of human or animal); sound
12	Proto-Turkic	ǖn	sound, voice

Every word from Proto-Turkic ǖn →Every word from Ancient Greek -ᾰ́ς →Every word from Hungarian ön- →