I have this information.

  • wox-tlo- ‘dispute’ [Noun] GOID: OIr. focull, focal [o n, later m] ‘dispute’ W: MW gwaethl [m] ‘dispute, debate’ PIE: *wokw- ‘voice, word’ (IEW: 1135f.) COGN: Skt. vā́k -, Lat. uōx, OHG giwahanem ‘recall’, Arm. gočem ‘call’ SEE: *wekwo- ‘face’ ETYM: OIr. focal, focul [o n] is often assumed to be a Latin loanword (cf. Lat. uocābulum), but the development *xtl- > *-kl- > -cul is attested in OIr. anacul < *anextlo-. The same root (*wokw-) appears in OIr. an-ocht ‘a metrical fault’ < PCelt. *an-uxto- < *n-ukwto-, parallel to Skt. anukta-, with the zero-grade of the root. MIr. fúaimm [n n, later f] ‘sound’ may be from *wōxsman-, or rather from the prefixed *ufo-woxsman-, and the same prefix would account for MIr. fúach [o m] ‘word’ < *ufowokwo-. W gwep [f] ‘face, grimace’ is often also derived from PCelt. *wekwo-, with the e-grade, and compared to Gaul. PNs such as Uepo, Uepo-litanos ‘broad-faced’ (?), as well as MoBret. goap ‘joke’
UtherPendrogn (talk)21:42, 18 September 2016

I'm not sure what you're pointing out specifically. If it's about the root: we cite bare PIE roots in the e-grade, as per WT:AINE. It can of course gradate into o-grade but the lemma form is in the e-grade, and as you can see we already had an entry there.

CodeCat21:44, 18 September 2016

I didn't know there was already an entry there.

UtherPendrogn (talk)21:48, 18 September 2016