G. iol n. “lamb” (Category: Lamb)
The word G. iol “lamb” appeared in the Gnomish Lexicon of the 1910s (GL/51), clearly a cognate of ᴱQ. eule of the same meaning from the early root ᴱ√EWE (QL/36), since eu usually became io in Gnomish. G. iolinc “little lamb, lambkin” is a diminutive form (GL/51).
Neo-Sindarin: I would adapt this word as ᴺS. ŷl “lamb” for purposes of Neo-Sindarin, since eu usually became ȳ in Sindarin.
Reference ✧ GL/51 ✧ “lamb”