Formennoun "north" (SA:men), also name of tengwa #10 (Appendix E, PHOR, MEN; replacing the rejected form Tormen). In Formenos, place-name "Northern Fortress" (SA:formen). Allative formenna, VT49:26.
formenyaadj. "northern" (PHOR)
fornaadj. “northern” (PE17:18)
Forolondië (also shortened and assimilated Follondië) place-name “North-harbourage”, old name for Arnor, in full Turmen Follondiéva “Realm of the North-harbourage” (PE17:28). Compare Hyaralondië.
Forostarplace-name, the "Northlands" of Númenor (UT:165)
fortë (stem *forti- given the primitive form ¤phoroti) adj. "northern" (PHOR)
foryaadj. "right" (PHOR), "dexter" (VT46:10)
Fuinoun "Night" (PHUY) - variant Hui, which form is probably to be preferred in light of Tolkien's later insight that the related word fuinë (see below) is actually Telerin, the proper Quenya form being huinë.
fuinënoun "deep shadow" (PHUY; cf. "Qenya" fuin "night" in MC:221). According to VT41:8, fuinë is not a Quenya form at all, but Telerin for Quenya huinë (but unquestionably, fuinë is quoted as a Quenya form in certain earlier sources; cf. also Fuinur below - perhaps we may assume that fuinë was borrowed into Quenya from Telerin and thus came to co-exist with huinë?
Fuinur(misprint "Fuinar" in the Silmarillion Index) masc. name, evidently derived from fuinë "shadow" (Silm; cf. the stem PHUY in the Etymologies)