Sc. Obs. [UP- 8. Cf. GIVE v. 64 e.] One who furnishes information or particulars (of something).
1576. in Balfour, Oppr. Orkney & Shetl. (1859), 45. Harie Bruce and Thomas Boyne, quha was bayth the upgiffaris of the faltis.
1621. Sc. Acts Parlt., Jas. VI. (1814), IV. 599/1. [To] caus the pairties vpgevaris of the saidis inventoures everie pairtie subscryve his awin inventar him selff.
c. 1630. Sir T. Hope, Minor Practicks (1726), 30. The Caution is holden to be found not by the Minor, but by the Upgiver.