Where does “gamma knife” come from?
gamma knife (English) comes from English knife, from Middle English knyf, from Old English cnīf, from Old Norse knífr, from Proto-Germanic knībaz, from Proto-Germanic knīpaną, from Proto-Indo-European ǵneybʰ-.
gamma knife (English): a machine that produces and focuses beams of...
Definitions
- a machine that produces and focuses beams of...
Ancestry of “gamma knife”, step by step
gamma knife traces back through two separate lines of ancestry.
via English knife
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | knife | A utensil or a tool designed for cutting,... |
| 2 | Middle English | knyf | A knife as a tool or instrument; the following... |
| 3 | Old English | cnīf | knife |
| 4 | Old Norse | knífr | knife |
| 5 | Proto-Germanic | knībaz | pincers; shears; knife |
| 6 | Proto-Germanic | knīpaną | to pinch |
| 7 | Proto-Indo-European | ǵneybʰ- | — |
via English gamma ray
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | gamma ray | Very high frequency electromagnetic radiation... |