Where does “pentiamond” come from?
pentiamond (English) comes from English polyiamond, from English diamond, from Middle English dyamaunt, from Old French diamant, from Late Latin diamas, from Latin adamās, from Ancient Greek ἀδάμας, from Ancient Greek ἀ- — together, one.
pentiamond (English): A polyiamond made up of five triangles
Definitions
- A polyiamond made up of five triangles
Ancestry of “pentiamond”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | polyiamond | A polyform made by joining one or more equilateral triangles edge to edge in various arrangements, with every polyiamond corresponding to a polyhex |
| 2 | English | diamond | A glimmering glass-like mineral that is an... |
| 3 | Middle English | dyamaunt | diamond; A valuable individual |
| 4 | Old French | diamant | diamond |
| 5 | Late Latin | diamas | — |
| 6 | Latin | adamās | Adamant; the hardest steel or iron; diamond; an object made of adamant |
| 7 | Ancient Greek | ἀδάμας | adamant, the hardest metal; a hard metal... |
| 8 | Ancient Greek | ἀ- | The alpha privativum, used to make words that... |
| 9 | Proto-Hellenic | hə- | same; together |
| 10 | Proto-Indo-European | sm̥- | one; with, together |
| 11 | Proto-Indo-European | sem- | together, one |