voluntary in Greek
voluntary in Greek
εθελοντικός
Done, given, or acting of one's own free will.
προαιρετικός
Done, given, or acting of one's own free will.
εθελούσιος
Done, given, or acting of one's own free will.
εκούσιος
Done, given, or acting of one's own free will.
εθελοντικός
Working or done without payment.