G0830–αὐθαίρετος–authairetos

For I can testify that to the utmost of their power, and even beyond their power, they have of their own free will given help.

αὐθαίρετοι, authairetoi “[they were] willing of themselves,”

for Titus welcomed our request, and, being thoroughly in earnest, comes to you of his own free will.

αὐθαίρετος authairetos “of his own accord”