Where does “siebenmonatlich” come from?

siebenmonatlich (German) comes from German monatlich, from German Monat, from Middle High German mānōt, from Old High German mānōd, from Proto-West Germanic mānōþ, from Proto-Germanic mēnōþs, from Proto-Indo-European mḗh₁n̥s, from Proto-Indo-European meh₁- — to measure.

siebenmonatlich (German): seven-monthly occurring once every seven months

Definitions

  1. seven-monthly occurring once every seven months

Ancestry of “siebenmonatlich”, step by step

siebenmonatlich traces back through two separate lines of ancestry.

via German monatlich

StepLanguageWordMeaning
1Germanmonatlichmonthly; monthly, every month
2GermanMonatmonth
3Middle High Germanmānōtmonth
4Old High Germanmānōdmonth
5Proto-West Germanicmānōþmonth
6Proto-Germanicmēnōþsmonth
7Proto-Indo-Europeanmḗh₁n̥smoon; month
8Proto-Indo-Europeanmeh₁-to measure

via German Sieben

StepLanguageWordMeaning
1GermanSiebenseven; gerund of sieben; the act of sifting;...
2Middle High Germansiben—
3Old High Germansibunseven
4Proto-West Germanic*sibun—
5Proto-Germanicsebunseven
6Proto-Germanicsebunt—
7Proto-Indo-Europeanseptḿ̥seven
Every word from Proto-Indo-European meh₁- →Every word from Proto-Indo-European mḗh₁n̥s →Every word from Proto-Germanic mēnōþs →