Where does “skottår” come from?

skottår (Swedish) comes from Swedish år, from French are, from Latin ārea, from Proto-Italic āzeā, from Proto-Indo-European h₂eHs-e-yeh₂, from Proto-Indo-European h₂eHs- — to be/become dry; to burn, to glow; hearth.

skottår (Swedish): a leap year

Definitions

a leap year

Ancestry of “skottår”, step by step

skottår traces back through two separate lines of ancestry.

via Swedish år

Step	Language	Word	Meaning
1	Swedish	år	a year
2	French	are	an are
3	Latin	ārea	a piece of level ground, a vacant place (esp. in the town)
4	Proto-Italic	āzeā	—
5	Proto-Indo-European	h₂eHs-e-yeh₂	—
6	Proto-Indo-European	h₂eHs-	to be/become dry; to burn, to glow; hearth

via Swedish skott

Step	Language	Word	Meaning
1	Swedish	skott	a shot; a shoot; a bulkhead
2	Old Swedish	skut	—
3	Old Norse	skot	—
4	Proto-Germanic	skutą	shot
5	Proto-Indo-European	(s)kewd-	to advance, push; to drive, propel

Every word from Proto-Indo-European h₂eHs- →Every word from Proto-Indo-European h₂eHs-e-yeh₂ →Every word from Proto-Italic āzeā →