בחינם (bekhinem) + ־וואַרג (-varg), as a calque of English freeware.
בחינםוואַרג • (bekhinemvarg) n
Schaechter-Viswanath, Gitl; Glasser, Paul (2016), “בחינםוואַרג”, in Comprehensive English-Yiddish Dictionary, Bloomington, Indiana: Indiana University Press