An Etymological Dictionary of Astronomy and Astrophysics

1. To carry out; → execute; do.
   

2. To go through or execute in the proper, customary, or established manner (Dictionary.com).

Etymology (EN): M.E. parformen, from Anglo-Fr. performer, from O.Fr. parfornir “to do, carry out, finish, accomplish,” from par- “completely,” → per-,

• fornir “to provide.”

Etymology (PE): Pergâlidan, from Kurd. (Sanandaj) pergâl “work, doing; order, command,” ultimately from Proto-Ir. *parikar-, from *pari- “through, throughout; thoroughly” (O.Pers. pariy “around, about;” Av. pairi “around, over”)

• *kar- “to do;” Pers. kar-, variants kâr, gar, gâr, → work.