Where does “tree-hiaghtinoil” come from?

tree-hiaghtinoil (Manx) comes from Manx shiaghtin, from Old Irish sechtmain, from Latin septimāna, from Latin septimānus, from Latin septimus, from Latin Septem, from Proto-Italic septem, from Proto-Indo-European septḿ̥ — seven.

tree-hiaghtinoil (Manx): tri-weekly

Definitions

  1. tri-weekly

Ancestry of “tree-hiaghtinoil”, step by step

StepLanguageWordMeaning
1Manxshiaghtinweek
2Old Irishsechtmainweek
3Latinseptimānaweek
4Latinseptimānusof or pertaining to the seventh in a series
5Latinseptimusseventh
6LatinSeptemseven; 7
7Proto-Italicseptemseven
8Proto-Indo-Europeanseptḿ̥seven
Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Italic septem →Every word from Latin Septem →