atalta- vb. "collapse, fall in" (TALÁT), weak pa.t. ataltanë "down-fell, fell down" in LR:47 and SD:247, but strong past tense atalantë "down-fell" in LR:56
Atan pl. Ataninoun "the Second Folk", an Elvish name of Mortal Men, the Second-born of Ilúvatar. Cf. also Núnatani(WJ:386), Hróatani(PE17:18), q.v. Atanalcar masc. name, *"Man-glory" (UT:210, cf. alcar). Atanamir masc.name, *"Edain-jewel"? (Appendix A). Atanatar masc. name, "Father of Men" (Appendix A), also common noun atanatar, pl. Atanatári, "Fathers of Men", a title that "properly belonged only to the leaders and chieftains of the peoples at the time of their entry into Beleriand" (PM:324, SA:atar)
ataquanta- vb. “refall, fall second time, double fall” (sic in PE17:166). The correct gloss must be “refill, fill second time, double fill”, which would connect with the verb quanta- “fill” and also make rather better sense.
ataquë("q") noun "construction, building" (TAK)
ataquetiënoun (or gerund of verb) “saying again, repetition” (PE17:166). Cited as at(a)quetië, implying an alternative form atquetië.
atarnoun "father" (SA; WJ:402, UT:193, LT1:255, VT43:37, VT44:12). According to the Etymologies (ATA) the pl. is atari, but contrast #atári in Atanatári "Fathers of Men" (q.v.); possibly the word behaves differently when compounded. Atarinya "my father" (LR:70), atar(inya) the form a child would use addressing his or her father, also reduced to atya(VT47:26). Diminutive masc. name Atarincë ("k") "Little father", amilessë (never used in narrative) of Curufinwë = Curufin (PM:353). Átaremma, Ataremma "our Father" as the first word of the Quenya translation of the Lord's Prayer, written before Tolkien changed -mm- as the marker of 1st person pl. exclusive to -lm-; notice -e- as a connecting vowel before the ending -mma "our". In some versions of the Lord's Prayer, including the final version, the initial a of atar "father" is lengthened, producing #átar. This may be a contraction of *a atar "o Father", or the vowel may be lengthened to give special emphasis to #Átar "Father" as a religious title (VT43:13). However, in VT44:12 Atar is also a vocative form referring to God, and yet the initial vowel remains short.
atarmëdative (?) pron. "for us" (VT44:18; Tolkien apparently considered dropping this curious form, which in another text was replaced by rá men, rámen; see rá #1)