English
photodynamic
Photodynamic comes from French dynamique ‘in motion, dynamic’, from Ancient Greek δυναμικός ‘able, powerful’, and ultimately from Proto-Indo-European *dewh₂- ‘to fit’.
- Proto-Indo-Europeanc. 4500–2500 BCE*dewh₂-‘to fit’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*dunamaireconstructed
- Ancient Greekc. 800–300 BCEδῠ́νᾰμαιdŭ́nămai
- Ancient Greek, derivedc. 800–300 BCEδύναμιςdúnamis‘power, might, strength’
- Ancient Greek, derivedc. 800–300 BCEδυναμικόςdunamikós‘able, powerful’
- Frenchc. 1600–presentdynamique‘in motion, dynamic’
- English1500–presentdynamic
- Englishtodayphotodynamic
attested reconstructed ? uncertain or disputed
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*dewh₂-‘to fit’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*dunamaireconstructed
- Ancient Greekc. 800–300 BCEδῠ́νᾰμαιdŭ́nămai
- Ancient Greek, derivedc. 800–300 BCEδύναμιςdúnamis‘power, might, strength’
- Ancient Greek, derivedc. 800–300 BCEδυναμικόςdunamikós‘able, powerful’
- Frenchc. 1600–presentdynamique‘in motion, dynamic’
- English1500–presentdynamic
- Englishtodayphotodynamic
A compound of photo- + dynamic
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-
Proto-Indo-European *dewh₂- ‘to fit’
…
Ancient Greek δῠ́νᾰμαι
Ancient Greek δύναμις ‘power’
Ancient Greek δυναμικός ‘powerful’
French dynamique ‘in motion, dynamic’
English dynamic
Linked words
through Proto-Indo-European *dewh₂- ‘to fit’
down, beautiful, town, beauty, ben, bonus, tool, teen, rebel, beneficial, optimal, boo, bonnie, beau, tow, optimism, boon, dun, beneficiary, revel, bona, bello, bene, bonny, tine, taw, bauble, dynastic, bellicose, bonbon, 90 more
through Proto-Hellenic *dunamai
through Ancient Greek δύναμις ‘power, might, strength’
through English dynamic
dynamically, thermodynamic, dynamical, hydrodynamic, hemodynamic, psychodynamic, biodynamic, 44 more
Today it means
adj Of, relating to, or caused by the energy or momentum of light or other electromagnetic radiations.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *dewh₂- / photodynamic