próprius
próprius, -a, -um
adjective
pró-pri-us · /ˈprɔ.pri.us/
one's own, proper to
Hence the proprium — the parts of the Mass proper to the day, as against the unchanging ordinarium.
in English property, proper, appropriate
in the texts
Evangelium ultimum (Ioann. 1, 1-14) própria
external dictionary: Logeion