1 prefix "outside" ARsup2/sup, element meaning "beside" VT42:17, by PE17:169; in the same source the glosses near, by, beside were rejected. Cf. ara.
2, also ari-, prefix for superlative compare arya \#1, 2, hence arcalima brightest, arimelda *dearest PE17:56-57. In the grammar described in the source, this prefix was to express superlative as the highest degree in actual comparison, whereas the alternative prefix an- rather expressed very or exceedingly with a more purely augmentative or adverbial force, but these distinctions do not seem to have been clearly present at all stages of Tolkiens work. See an- \#2, am- \#2.
a prefixed form of the stem Ara- "noble" PM:344. In the masc. names Aracáno "high chieftain", mothername amilessë, q.v. of Fingolfin PM:360, cf. 344, Arafinwë "Finarfin" MR:230
Quettaparma Quenyallo (Quenya-English).