peccadillo
noun /ˌpekəˈdɪləʊ/
/ˌpekəˈdɪləʊ/
(plural peccadilloes, peccadillos)
- a small unimportant thing that somebody does wrong
- She forgave her husband’s sexual peccadilloes.
Word Originlate 16th cent.: from Spanish pecadillo, diminutive of pecado ‘sin’, from Latin peccare ‘to sin’.