An archaic dvanda dual form in the Early Qenya Grammar of the 1920s referring to both parents based on older atta(h)-, replaced by the dual atarqi of ᴱQ. atar in normal speech (PE14/77). As a dvanda dual, it was based on the word for “father”, with “mother” being implied. It also appeared in an (archaic?) plural form attahi in the English-Qenya Dictionary, but presumably this only meant “fathers” (PE15/72).