PTS Pali-English dictionary - The Pali Text Society's Pali-English dictionary
Parā°
Parā°,(prefix) [para+ā,not Instr.of para:see para 2 c; in some cases it may also correspond to paraṁ°] prep.meaning “on to,” “over” (with the idea of mastering),also “through,throughout.” The ā is shortened before double consonant,like parā+kṛ=parakkaroti,parā+ kram=parakkamati (see under cpds.of para).(Page 420)