cognizer, -iser
(kɒgˈnaɪzə(r))
[f. cognize v. + -er. Cf. cognizor, and connoisseur n., for other types.]
One who or that which cognizes.
| 1836 Blackw. Mag. XL. 255 Intellect is the cognizer of all forms. 1877 Blackie Wise Men Introd. 12 An inherent λόγος, without which neither a cogniser nor a cognised..is possible. |