Where does “holophotometer” come from?
holophotometer (English) comes from English photometer, from English -meter, from French mètre, from Latin metrum, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron, from Proto-Indo-European -trom — Derives agent nouns from verbs, denoting someone...
holophotometer (English): A kind of photometer designed to measure the light emanating in all directions from a source
Definitions
- A kind of photometer designed to measure the light emanating in all directions from a source
Ancestry of “holophotometer”, step by step
holophotometer traces back through two separate lines of ancestry.
via English photometer
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | photometer | Any of several instruments used to measure... |
| 2 | English | -meter | Used to form the names of measuring devices |
| 3 | French | mètre | metre/meter; first-person singular present... |
| 4 | Latin | metrum | a measure |
| 5 | Ancient Greek | μέτρον | something used to measure: measure, rule, weight;... |
| 6 | Ancient Greek | -τρον | Forms instrument nouns |
| 7 | Proto-Hellenic | -tron | Forms instrument nouns from verb stems |
| 8 | Proto-Indo-European | -trom | Forms nouns denoting a tool or instrument |
| 9 | Proto-Indo-European | -tḗr | Derives agent nouns from verbs, denoting someone... |