Quenya 

attalya

noun/adjective. biped, *(lit.) two-footed

A noun or adjective meaning “two-legged”, attested only in its (noun) plural form attalyar (WJ/389). It is a combination of atta “two” and tál “foot”, with the adjective suffix -ya.

Conceptual Development: In the Qenya Lexicon from the 1910s, there were similar words for “biped”: the noun ᴱQ. attalin and the adjective ᴱQ. attalaite (QL/88) based on ᴱQ. tala “foot” with the prefix ᴱQ. at- “bi-, twi-”. The form attala- also appeared under the early root ᴱ√ATA with a note saying “see s.v. tala”, and this was probably a reference to these “biped” words (QL/33).