English
radiate
Radiate comes from Latin radiātus ‘radiated’, and goes back to radius ‘spoke of a wheel’.
- Latinc. 75 BCE–200 CEradius‘spoke of a wheel’
- Latin, derivedc. 75 BCE–200 CEradiō‘to radiate, furnish with spokes, give out rays, radiate, shine’
- Latin, derivedc. 75 BCE–200 CEradiātus‘radiated’perfect passive participle of radiō
- Englishearliest quotation 1706radiate
attested reconstructed ? uncertain or disputed
Earlier history uncertain.
Lineage
- Latinc. 75 BCE–200 CEradius‘spoke of a wheel’
- Latin, derivedc. 75 BCE–200 CEradiō‘to radiate, furnish with spokes, give out rays, radiate, shine’
- Latin, derivedc. 75 BCE–200 CEradiātus‘radiated’perfect passive participle of radiō
- Englishearliest quotation 1706radiate
Earliest quotation: 1706, John Locke: “Light radiates from luminous bodies directly to our eyes.”
Linked words
through Latin radius ‘spoke of a wheel’
through Latin radiō ‘to radiate, furnish with spokes, give out…’
Another origin of radiate
- Latinc. 75 BCE–200 CEradiātus‘radiated’
- Englishtodayradiate
Today it means
verb To extend, be sent or spread out from a center like radii.
Language periods are conventional ranges, not dates for this word.
Etymograph / Latin radius / radiate