Where does “rötmånadskalv” come from?

rötmånadskalv (Swedish) comes from Swedish rötmånad, from Swedish röta, from Swedish a, from Swedish avlopp, from Swedish lopp, from Swedish löpa, from Old Swedish løpa, from Old Norse hlaupa.

rötmånadskalv (Swedish): a two-headed, or otherwise malformed, calf (believed to be common during dog days)

Definitions

  1. a two-headed, or otherwise malformed, calf (believed to be common during dog days)

Ancestry of “rötmånadskalv”, step by step

rötmånadskalv traces back through two separate lines of ancestry.

via Swedish rötmånad

StepLanguageWordMeaning
1Swedishrötmånaddog days; July 22-24 to August 22-24, after...
2Swedishrötarot; luck
3Swedishafrom
4Swedishavloppa drain; sewage
5Swedishloppa race (running competition or (in an extended sense) other speed competition, like in English)
6Swedishlöpato run along, stretch; to run, to move quickly...
7Old Swedishløpato run
8Old Norsehlaupato leap, jump, spring
9Proto-Germanichlaupanąto jump forward, to leap
10Proto-Indo-Europeanklaup-

via Swedish kalv

StepLanguageWordMeaning
1Swedishkalvcalf
2Old Swedishkalvercalf
3Old Norsekalfrcalf
4Proto-Germanickalbazcalf
5Proto-Indo-Europeangʷolbʰowomb, animal young
Every word from Proto-Indo-European klaup-Every word from Proto-Germanic hlaupanąEvery word from Old Norse hlaupa