Hungarian Historical Phonology szeg
szëg 'Nagel; Winkel, Ecke'
First attestation/Old Hungarian data
[coming]
Important dialectal forms
szög (see UEW)
Uralic/Pre-Hungarian reconstruction
? *siŋkV < *śiŋkV
(Disputed:)
UEW: PUg *seŋkɜ 'wedge; Keil'
Cognates suggested in earlier research
Mansi: North (So) saŋ̥k˳, South (TK) süŋ, West (P) säŋk, (LU) säŋ̥k˳ə 'Keil'
Loan etymology
PUg ← Indo-Iranian *ćanka- (see Korenchy 1972, Holopainen 2019 with references)
Commentary
The loan etymology is semantically convincing, but the unclarities in the reconstruction of the vocalism of the Ugric words makes it uncertain.
Conclusion
[coming]
References
EWUng
Holopainen 2019
Korenchy 1972
UEW: PUg *seŋkɜ Uralonet