pari passu

adverb, Latin.

1. with equal pace or progress; side by side.
2. without partiality; equably; fairly.

adverb

1. usually law with equal speed or progress; equably: often used to refer to the right of creditors to receive assets from the same source without one taking precedence

Latin, literally “with equal step,” from ablative of par “equal” (see par) + passus “pace” (see pace (n.)).