Ai! Lá polin saca i quettar!
Parf Edhellen: an elvish dictionary requires JavaScript to function properly. We use JavaScript to load content relevant to you, and to display the information you request. Please enable JavaScript if you are interested in using this service.
How do I enable JavaScript? (on google.com).
A noun for “thatch” in The Etymologies of the 1930s derived from primitive ᴹ✶tupsē under the root ᴹ√TUP (Ety/TUP). Its derivation is rather mysterious unless you realize that final *-se* became *-sa* in (Old) Noldorin, for example ᴹ✶peltakse > ON. pelthaksa (Ety/PEL). Given this, primitive ✱tupsā became ON. tuphsa [tuɸsa], when then underwent *a*-affection to tophsa [toɸsa]. The spirantal *ph* vocalized to *u*, and in the resulting tous(a) the diphthong *ou* became *au*, producing taus.
Neo-Sindarin: Most of these phonetic changes remain valid in later Sindarin, but it is possible that the combination *ps* became *ff* rather than us to produce S. ✱toph. Nevertheless, I would assume some variations in the ancient Sindarin dialects of Beleriand, and would retain [N.] taus “thatch” as the result in one of those dialects for purposes of Neo-Sindarin.