validatorn.
/ˈvalɪdeɪtə/ One who or that which confirms the validity of something. Also attributive.
ΘΚΠ
the mind > mental capacity > belief > uncertainty, doubt, hesitation > absence of doubt, confidence > assured fact, certainty > making certain, assurance > [noun] > one who or that which fixes
settler1598
ascertainer1611
validator1951
1951 R. Firth Elements Social Organization vii. 245 The prophet, the mystic, the spirit-medium are valuable interpreters and validators of religious belief.
1971 Engineering Apr. 31/1 Diagram showing the component parts of the coin validator mechanism.
1978 Washington Post 13 Jan. b2/5 The piece of equipment that accepts bills, called a validator, doesn't like cold weather.
1980 Observer 16 Mar. 22/7 The key is not a security device and that is that. It's a validator, to make sure that somebody hasn't made a typing error in sending the message.
This entry has not yet been fully updated (first published 1986; most recently modified version published online September 2018).
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n.1951