Where does “three-tiered” come from?

three-tiered (English) comes from English three, from Middle English thre, from Old English þrī, from Proto-West Germanic þrīʀ, from Proto-Germanic þrīz, from Proto-Indo-European *tréyes.

three-tiered (English): Having three tiers

Definitions

  1. Having three tiers

Ancestry of “three-tiered”, step by step

three-tiered traces back through two separate lines of ancestry.

via English three

StepLanguageWordMeaning
1EnglishthreeA numerical value after two and before four....
2Middle Englishthrethree
3Old Englishþrīthree
4Proto-West Germanicþrīʀthree
5Proto-Germanicþrīzthree
6Proto-Indo-European*tréyes

via English tiered

StepLanguageWordMeaning
1Englishtieredsimple past tense and past participle of tier;...
Every word from Proto-Indo-European *tréyesEvery word from Proto-Germanic þrīzEvery word from Proto-West Germanic þrīʀ