Gudgeon (noun) (archaic)
A credulous or easily fooled person.
Gudgeon also has many definitions still in use. The pivot on which a bell rotates, the tubular part of a hinge, a pin holding two stone blocks together.
Middle English: from Old French goujon, diminutive of gouge (see gouge).
“Has the old gudgeon never heard of a celebratory glass of champagne?”
Introductory study, especially of the literary and external history of the Bible prior to exegesis.
Mid 19th century: plural of isagogic, via Latin from Greek eisagōgikos, from eisagōgē ‘introduction’, from eis ‘into’ + agein ‘to lead’.