domus
domus, -us f.
noun, 4th declension
do-mus · /ˈdɔ.mus/
house, home
It declines mostly in the 4th declension but keeps some 2nd declension forms — hence the wavering in dictionaries.
in English domestic, dome
in the texts
Lavábo inter innocéntes domus
external dictionary: Logeion