An Etymological Dictionary of Astronomy and Astrophysics

To bring to its goal or conclusion; carry out; perform; finish (Dictionary.com).

Etymology (EN): M.E. accomplice, from O.Fr. acompliss-, p.p. stem of acomplir “to fulfill, complete,” from L. → ad- “to” + complere “to fill up,” → complete.

Etymology (PE): Anjâm dâdan, literally “to make an end of, to finish; to carry out,” from anjâm “end, conclusion” (from Mid.Pers. hanjâm “end, completion, outcome;” ultimately
from Proto-Ir. *ham-gam-, from *ham-, → com-,

• *gam- “to come,” cf. Av. gam- “to come,” related to Pers. âmadan, → walk), + dâdan “to give, commit,” → yield.