Origin: 1640–50; apparently representing earlier agar, ager, obscurely akin to hyger, higre; (compare Anglo-Latin (12th century) higra the tidal bore of the Severn); compared with Old English ēgor, eogor flood, high tide, though preservation of g in modern forms is problematic
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.