Where does “bissextile year” come from?

bissextile year (English) comes from English bissextile, from Latin bisextilis, from Latin bis, from Latin color, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron, from Proto-Indo-European -trom — Derives agent nouns from verbs, denoting someone...

bissextile year (English): a year with an extra day, a leap year

Definitions

  1. a year with an extra day, a leap year

Ancestry of “bissextile year”, step by step

bissextile year traces back through two separate lines of ancestry.

via English bissextile

StepLanguageWordMeaning
1EnglishbissextileHaving an intercalary day, "particularly" the...
2Latinbisextilisleap year, bissextile; intercalary
3Latinbistwice, two times, on two occasions, in two ways
4Latincolorcolour, shade; color; pigment; complexion
5Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
6Ancient Greek-τρονForms instrument nouns
7Proto-Hellenic-tronForms instrument nouns from verb stems
8Proto-Indo-European-tromForms nouns denoting a tool or instrument
9Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English year

StepLanguageWordMeaning
1EnglishyearA solar year, the time it takes the Earth to...
2Middle Englishyeeryear
3Old Englishġēaryear
4Proto-West Germanicjāryear
5Proto-Germanicjērąyear; name of the J-rune
6Proto-Indo-Europeanyeh₁r-year
Every word from Proto-Indo-European -tḗrEvery word from Ancient Greek -τρονEvery word from Ancient Greek μέτρον
bissextile year — Etymology, Origin & Word History | Etymology Explorer