Hungarian Historical Phonology ék
ék 'wedge; Keil'
First attestation/Old Hungarian data
[coming]
Important dialectal forms
[coming]
Uralic/Ugric/Pre-Hungarian reconstruction
(Disputed:)
UEW: ? PUg *ϑȣ̈ŋɜ 'stopper, cork; wedge; Pfropfen; Keil'
Status of the Ugric etymology
Improbable (phonologically irregular)
Loan etymology
← ? West Old Turkic *ēk < *ǟk, cf. East Old Turkic *ǟk 'wedge' (WOT: 311-313)
Cognates suggested in earlier research
UEW:
Khanty: East (VK) jö̆ŋk, South (DN) tŏŋk, North (O) luŋk 'Holznagel, Keil'
Mansi: South (TJ) tüŋkə·ľ 'Pfropfen'
Commentary
UEW lists ék as an uncertain Ugric word, as the consonant corresondence between the Ob-Ugric cognates and Hu ék is not regular. According to UEW, the etymology could only be correct if *ŋ would have been vocalised in Hungarian, and k is a suffix. The same explanation is found already in MSzFE. However, also the vowel-relations are irregular, and it is quite certain that Hungarian ék has nothing to do with the Ob-Ugric words listed above.
WOT mentions an uncertain loan etymology: Hu ék could formally be a borrowing from West Old Turkic *ēk, but it is uncertain whether such a Turkic form can be reconstructed into Old Turkic stage, as only certain cognate is Turkmen ǟk ‘klin (všivaemyj v odežde)’ (see WOT: 312-313 for discussion of this and other Turkic forms). If this Turkic word instead can be reconstructed, it would phonetically and semantically a plausible origin for the Hungarian word.
Conclusion
Due to phonological irregularities, no Proto-Ugric form can be reconstructed. The Turkic etymology is a plausible possibility but more research on the reconstruction of the Turkic word is needed.
References
MSzFE: 144-145, s.v. ék: ? Proto-Ugric, ? Proto-Finno-Ugric
UEW s.v. ϑȣ̈ŋɜ: ? Proto-Ugric Uralonet
WOT: 311-313: ← ? West Old Turkic