κατηρτίσω [2 verses](verb 2nd sg aor ind) "Thou hast perfected" is katartizô, which means "to adjust," "to put in order," "to restore," "to mend," "to furnish," "to equip," and "to prepare." It is a metaphor meaning to "restore to a right mind," It also means to "compound," or "prepare" dishes or medicines,  - (CW) "Perfect" is from a verb which means "to furnish," "to equip," and "to prepare." It is a metaphor for being restored to one's right mind. This is not the word usually translated as "perfect." CW --Confusing Word -- This is not the common word usually translated as "perfect."