ar (2) noun "day" (PE17:148), apparently short for árë, occurring in the names of the Valinorean week listed below. Tolkien indicated that ar in these names could also be arë when the following element begins in a consonant (VT45:27). Usually the word for "day" in LotR-style Quenya is rather aurë (or ré), q.v.
Ar Fanturionnoun *"Day of the Fanturi (Mandos and Lorien)" (LEP/LEPEN/LEPEK). Also Arë Fanturion (VT45:27).
Ar Manwennoun *"Day of Manwe" (LEP/LEPEN/LEPEK; this is "Qenya" with genitive in -n.) Also Arë Manwen (VT45:27).
Ar Ulmonnoun *"Day of Ulmo" (LEP/LEPEN/LEPEK; this is "Qenya" with genitive in -n.)
Ar Veruennoun *"Day of the Spouses" (Aule and Yavanna) (LEP/LEPEN/LEPEK; this is "Qenya" with genitive in -n.) Also Arë Veruen (VT45:27).
ar- (1) prefix "outside" (AR2), element meaning "beside" (VT42:17), “by” (PE17:169; in the same source the glosses “near, by, beside” were rejected). Cf. ara.