An Etymological Dictionary of Astronomy and Astrophysics

In a semiconductor, an impurity which may induce electric conduction by providing free electrons. → acceptor; → impurity.

Etymology (EN): M.E. donour, from O.Fr. doneur, from L. donator, from donare “to give as a gift,” donum “gift,” dare “to give,” cognate with Pers. dâdan “to give,” from PIE base *do- “to give.”

Etymology (PE): Dahandé “giver,” from dâdan “to give,” Mid.Pers. dâdan “to give,” O.Pers./Av. dā- “to give, grant, yield,” Av. dadāiti “he gives,” Skt. dadâti “he gives,” Gk. didomi “I give,” PIE base *do- “to give.” For L. cognates see above.