Donor

Part of speech: noun (n.)

1. One who gives or bestows; one who confers anything gratuitously; a benefactor.

2. One who grants an estate; in later use, one who confers a power; -- the opposite of donee. Kent. Touching, the parties unto deeds and charters, we are to consider as well the donors and granters as the donees or grantees. Spelman.