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 fool or simpleton; ninny.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
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.
1670s, lit. "inattentively," hence "unintentionally;" see inadvertent.
inadvertent
1650s, ultimately from inadvertence (1560s), from Scholastic L. inadvertentia, from in- "not" + advertentia, from L. advertere "to direct one's attention to," lit. "to turn toward" (see advertise).