the mind > attention and judgement > enquiry > [noun] > an enquirer, questioner
asker?c1225
questioner?a1425
querorc1450
speererc1480
inquirer?c1570
querist1633
querier1672
inquirist1748
queryist1863
c1480 (a1400) St. Machor 1140 in W. M. Metcalfe Legends Saints Sc. Dial. (1896) II. 33 Þarfor lewe forthir to spere..; for sperer of his maieste fra his Joy sall donne thrungine be.