katartivzw 2675, to make fit, to equip, prepare (kata, down, artos, a joint).

katavrtisiV 2676, a making fit, is used figuratively in an ethical sense in 2 Cor. 13:9, R.V., "perfecting" (A.V., "perfection"), implying a process leading to consummation.

katartismovV 2677 denotes, in much the same way as No. 1, a fitting or preparing fully, Eph. 4:12.

2675 - katartivzw - to render, i.e. to fit, sound, complete; to mend (what has been broken or rent), to repair; put in order, prepare; ethically: to strengthen, perfect, complete, make one what he ought to be / verb

Matthew 4:21 And going on from there, he saw another two brothers, James the son of Zebedee, and John his brother, in a boat with Zebedee their father, mending their nets. And He called them;

1 Cor. 1:10 But I exhort you, brothers, by the name of our Lord Jesus Christ, that you all speak the same thing and that there be no divisions among you; but that you be perfectly joined together in the same mind and in the same judgment.

Gal. 6:1  Brothers, if a man is overtaken in a fault, you the spiritual ones restore such a one in the spirit of meekness, considering yourself, lest you also be tempted.

1 Thessalonians 3:9-10  For what thanks can we render to God again for you, for all the joy with which we rejoice for your sakes before our God,  10  night and day praying exceedingly for me to see your face and to perfect the things lacking in your faith?

Hebrews 13:20-21  Now may the God of peace (who brought again our Lord Jesus from the dead, that great Shepherd of the sheep, through the blood of the everlasting covenant)  21  make you perfect in every good work to do His will, working in you that which is well pleasing in His sight through Jesus Christ, to whom be glory forever and ever. Amen.

1 Peter 5:10  But the God of all grace, He calling us to His eternal glory by Christ Jesus, after you have suffered a little, He will perfect, confirm, strengthen, and establish you.

2676 - katavrtisiV - a strengthening, perfecting of the soul; a training, disciplining, instructing / noun

2 Corinthians 13:9  For we are glad when we are weak, and you are powerful. But we pray also for this, your perfection.

2677 - katartismovvV - complete furnishing, equipping / noun

Ephesians 4:11-12  And truly He gave some to be apostles, and some to be prophets, and some to be evangelists, and some to be pastors and teachers,  12  for the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ.