ossë noun "terror" (GOS/GOTH). In the pre-classical Tengwar system presupposed in the Etymologies, ossë was also the name of a Tengwa similar in shape to Roman c, which in a full-vowel mode apparently had the value o. (VT45:15; in the Sindarin "Mode of Beleriand", exemplified in the LotR itself, this letter has the value a instead. Elsewhere in the Etymologies itself, this symbol is called Elwë (q.v.) and is assigned the value e.)
Quenya
oswë
hip
ossë
terror
ossë
terror
Ossë noun name of a Maia, adopted and adapted from Valarin (WJ:400), though connected with the common noun ossë "terror" in Etym (GOS/GOTH)
oswë
noun. hip
The word ᴱQ. oswe “hip” appeared in the Qenya Lexicon of the 1910s under the early root ᴱ√OSO whose other derivative was ᴱQ. oksa “joint” (QL/71).
Neo-Quenya: I’d retain the word ᴺQ. oswë “hip” for purposes of Neo-Quenya, but it cannot be derived from √OS any longer. I would assume it is derived from a √OTH, a variant of ᴹ√OS “round” (perhaps originally referring to the round joint), and hence archaically oþwe; compare [ᴹQ.] hiswa < ᴹ✶khithwa (Ety/KHIS).
oswë noun "hip" (QL:71). If this "Qenya" word is used in Tolkiens later Quenya (and no other term for "hip" seems available), one would have to assume that the s represents older þ (or it would have become z > r).