A stupid or eccentric person: A typographical device other than a letter or numeral (such as an asterisk), used to signal divisions in text or to replace letters in a euphemistically presented vulgar word.
Mid 19th century (in early use applied to various vaguely specified objects): origin uncertain; perhaps based on ding. dingbat is probably by association with ‘having bats in the belfry’.
“Hopefully the rightwing-o-sphere’s infatuation with this dingbat will be over soon.”
“I still find it funny when I come across an obscenity which has been the victim of a literary bleep; using a couple of dingbats in a four letter word does not lessen its impact.”
A person who inspires or influences others, especially one prominent in a particular sphere.
Late Middle English: from Old French luminarie or late Latin luminarium, from Latin lumen, lumin- ‘light’. Modern meaning comes from the more archaic meaning ‘a natural body that gives light, such as the sun or the moon.’
(archaic) a momentary sick of faint feeling. Modern usage is an uneasy feeling of doubt about one’s actions, usually used in the negative ‘no qualms’.
Early 16th century (in the sense ‘momentary sick feeling’): perhaps related to Old English cw(e)alm ‘pain’, of Germanic origin.