[2015] proprio, āvī, ātum, āre (proprius), zu eigen machen, Cael. Aur. de morb. acut. 1, 15, 150 u.a. – Archaist. Konj. Perf. propriassit, Fest. 229 (a), 6.
Herder-1854: Motu proprio
Meyers-1905: Proprĭo motu · Proprĭo Marte · Motu proprĭo
Pierer-1857: Proprĭo Marte · Motu proprĭo