Where does “tetrasome” come from?
tetrasome (English) comes from English some, from Middle English som, from Old English sum, from Proto-West Germanic *sum, from Proto-Germanic sumaz, from Proto-Indo-European sem- — together, one.
tetrasome (English): A complex of four homologous chromosomes formed...
Definitions
- A complex of four homologous chromosomes formed...
Ancestry of “tetrasome”, step by step
tetrasome traces back through two separate lines of ancestry.
via English some
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | some | A certain number, at least two; An indefinite... |
| 2 | Middle English | som | some |
| 3 | Old English | sum | some |
| 4 | Proto-West Germanic | *sum | some |
| 5 | Proto-Germanic | sumaz | some (one), a certain (one) |
| 6 | Proto-Indo-European | sem- | together, one |
via English tetra
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | tetra | Any of numerous species of small South American... |
| 2 | Translingual | Tetragonopterus | — |
| 3 | Ancient Greek | πτερόν | feather; wing; Any winged creature |
| 4 | Proto-Indo-European | péth₂r̥ | wing; feather |
| 5 | Proto-Indo-European | peth₂- | to spread out; to fly |