English
radioactivate
From radioactive + -ate (verb-forming suffix).
Formed from radioactive + ate
Proto-Indo-European *h₂eǵ- ‘to drive’
…
Latin āctīvus ‘active’
Old French actif ‘active’
French actif ‘active’
French radio-actif
English radioactive
Today it means
verb To make something radioactive.
Language periods are conventional ranges, not dates for this word.
Etymograph / radioactivate