Where does “trirectangular” come from?
trirectangular (English) comes from English tri, from Proto-Indo-European tréyes — three.
trirectangular (English): Having three right angles
Definitions
- Having three right angles
Ancestry of “trirectangular”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | tri | triathlon; triangle |
| 2 | Proto-Indo-European | tréyes | three |