Quenya 

mamo

pronoun. who, what person

A pronominal form of ma “what” in notes 1969, with the glosses “who, what person” (PE23/135).

Conceptual Development: Demonstrative, Relative, and Correlative Stems (DRC) from 1948 had ᴹQ. mane “who, which” as the pronominal form of ᴹQ. ma, with masculine and feminine variants mano and {mare >>} manie (PE23/80, 102).