bissextile
pronunciation
How to pronounce bissextile in British English: UK ['bɪsekstaɪl]
How to pronounce bissextile in American English: US ['bɪsekstaɪl]
Word Origin
- bissextile
- 1580s (n.); 1590s (adj.), in reference to Roman leap year, from Late Latin (annus) bissextilis "leap year," literally "the twice sixth-day," because the sixth day before the Calends of March was doubled.