in pro·pri·a per·so·na 
(ĭn prō′prē-ə pər-sōnə)
(ĭn prō′prē-ə pər-sōnə)adv.
Law
Law
In one's own person, especially without representation by an attorney.
[Medieval Latin in propriā persōnā : Latin in, in + Latin propriā : feminine ablative sing. of proprius, one's own + Latin persōnā, ablative of persōna, person.]