English
photometer
Photometer comes from Ancient Greek μέτρον ‘something used to measure: measure, rule, weight’, from φῶς ‘Attic form of φᾰ́ος’, and ultimately from Proto-Indo-European *bʰeh₂- ‘to shine, glow light’.
- Proto-Indo-Europeanc. 4500–2500 BCE*bʰeh₂-‘to shine, glow light’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*bʰéh₂osreconstructed
- Proto-Hellenicc. 2200–1600 BCE*pʰáwosreconstructed
- Ancient Greekc. 800–300 BCEφᾰ́οςphắos‘light’
- Ancient Greek, derivedc. 800–300 BCEφῶςphôs‘Attic form of φᾰ́ος’
- Ancient Greek, derivedc. 800–300 BCEμέτρονmétron‘something used to measure: measure, rule, weight’
- Englishtodayphotometer
attested reconstructed ? uncertain or disputed
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*bʰeh₂-‘to shine, glow light’reconstructed
- Proto-Indo-European, derivedc. 4500–2500 BCE*bʰéh₂osreconstructed
- Proto-Hellenicc. 2200–1600 BCE*pʰáwosreconstructed
- Ancient Greekc. 800–300 BCEφᾰ́οςphắos‘light’
- Ancient Greek, derivedc. 800–300 BCEφῶςphôs‘Attic form of φᾰ́ος’
- Ancient Greek, derivedc. 800–300 BCEμέτρονmétron‘something used to measure: measure, rule, weight’
- Englishtodayphotometer
A compound of photo- + -meter
Proto-Indo-European *bʰeh₂- ‘to shine, glow light’
Proto-Indo-European *bʰéh₂os
Proto-Hellenic *pʰáwos
Ancient Greek φᾰ́ος ‘light’
Ancient Greek φῶς ‘light’
English photo-
Linked words
through Proto-Indo-European *bʰeh₂- ‘to shine, glow light’
focus, phone, professor, famous, fuel, ben, favor, ban, fantasy, phase, favourite, fancy, fate, fame, profession, fatal, bee, fairy, fabulous, emphasis, abandon, infant, confession, confess, beacon, beck, phenomenon, symphony, boon, eff, fab, phantom, fay, bane, fable, banish, epiphany, buoy, nefarious, profess, 128 more
through Ancient Greek φῶς ‘Attic form of φᾰ́ος’
photographer, phosphate, phosphorus, phosphine, 7 more
through Ancient Greek μέτρον ‘something used to measure: measure, rule, weight’
metric, metre, parameter, asymmetry, madder, metrology, metra, 43 more
Today it means
noun Any of several instruments used to measure various aspects of the intensity of light.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *bʰeh₂- / photometer