faka- (cause an action) + toese (remove).
Fakatoese atu mo te tuai o tali atu. I apologize for the late response. -atu: you apologize to others, -mai: Others apologize to you
faka-(~の状態にする)+ toese(取り除く).
Fakatoese atu mo te tuai o tali atu. お返事が遅くなってすみません.-atu: 話者が相手に向かって謝る,-mai: 相手が話者に向かって謝る.[参]
fakatoesēga.