I think
Patricia sounds old, as well as its nicknames
Tricia,
Pat and
Patty. The only reason that
Trish sounds more modern than the other nicknames is because of
Trish from '
Austin &
Ally'. I grew up watching it and never thought it sounded old.
https://youtube.com/@MarioDrama632 or
https://youtube.com/@Objects_2763 :3