proper

Characterized by appropriateness or suitability; fitting.

Called for by rules or conventions; correct.

Strictly following rules or conventions, especially in social behavior; seemly.

Belonging to one; own.

Characteristically belonging to the being or thing in question; peculiar.

Being within the strictly limited sense, as of a term designating something.

For use in the liturgy of a particular feast or season of the year.

Of or relating to a subset of a given set when the set has at least one element not in the subset.

Worthy of the name; true.