how to say “to volunteer” in Hebrew

לְהִתְנַדֵּב, לְנַדֵּב   Perhaps you know Israeli men or boys with the name נָדָב (nah-DAHV). One of the star instructors on the Ulpan La-Inyan staff bears that name. The root נ.ד.ב (n.d.b) is the concept of giving and contributing.   To volunteer oneself, as in cleaning up a beach or spending quality time with underprivileged children, is…