Where does “pseudospectrum” come from?
pseudospectrum (English) comes from English Spectrum, from Latin spectrum, from Ancient Greek σκοπέω, from Ancient Greek σκοπός, from Ancient Greek σκέπτομαι, from Proto-Hellenic sképťomai, from Proto-Indo-European spéḱyeti, from Proto-Indo-European speḱ- — to see, to look, to observe.
pseudospectrum (English): A set containing the spectrum of an operator and...
Definitions
- A set containing the spectrum of an operator and...
Ancestry of “pseudospectrum”, step by step
pseudospectrum traces back through two separate lines of ancestry.
via English Spectrum
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | Spectrum | A range; a continuous, infinite, one-dimensional set, possibly bounded by extremes |
| 2 | Latin | spectrum | appearance, image; apparition, specter |
| 3 | Ancient Greek | σκοπέω | I look, look at, behold; I examine, inspect; 413... |
| 4 | Ancient Greek | σκοπός | watcher, lookout; protector, guardian; spy, scout |
| 5 | Ancient Greek | σκέπτομαι | I look at, examine; I examine, consider, think |
| 6 | Proto-Hellenic | sképťomai | to look at |
| 7 | Proto-Indo-European | spéḱyeti | to be looking at, to keep looking at |
| 8 | Proto-Indo-European | speḱ- | to see, to look, to observe |
via English pseudo
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | pseudo | An intellectually pretentious person; a... |
| 2 | English | pseudo- | False, not genuine, fake |
| 3 | Ancient Greek | ψευδής | lying, false, untrue; deceived, beguiled |
| 4 | Ancient Greek | -ής | adjective suffix |
| 5 | Proto-Indo-European | -ēs | Primarily forms adjectival bahuvrīhi compounds |
| 6 | Proto-Indo-European | -ess | — |
| 7 | Proto-Indo-European | -os | Creates action nouns or result nouns from verbs;... |