Where does “directivity” come from?
Directivity comes from English directive with the French suffix -ité, derived from Latin -itas and Proto-Indo-European -it-, forming abstract nouns from adjectives.
directivity (English): A measure of the performance of an antenna...
Definitions
- A measure of the performance of an antenna...
Ancestry of “directivity”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | -ity | Used to form a noun from an adjective;... |
| 2 | Middle English | -ite | — |
| 3 | Old French | -ité | -ity |
| 4 | Latin | -itās | — |
| 5 | Proto-Indo-European | -teh₂ts | Used to form nouns representing state of being |
| 6 | Proto-Indo-European | -teh₂ | Used to form nouns representing state of being |
| 7 | Proto-Indo-European | -tós | Creates verbal adjectives from verb stems |