atta (1) cardinal "two" (AT(AT), Letters:427, VT42:26, 27, VT48:6, 19). Elen atta "two stars" (VT49:44); notice how a noun is indeclinable before this numeral, and any case endings are "singular" and added to the numeral rather than the noun, e.g. genitive elen atto "of two stars" (VT49:45). Attalyar "Bipeds" (sg. *Attalya) = Petty-dwarves (from Sindarin Tad-dail) (WJ:389). A word atta_ "again" was struck out; see the entry _TAT in Etym and cf. ata in this list.
Adûnaic
satta
noun. two
The Adûnaic number “two” (SD/428). It seems likely that it is related to Q. atta “two”, as suggested by Carl Hostetter and Patrick Wynne (AAD/22), though it is unclear how the initial s- might have developed in the Adûnaic. It may also be related to the Adûnaic dual suffix -at, as suggested by Andreas Moehn (EotAL/SAT).