English
ignitron
From ignite + -tron.
Formed from ignite + -tron
Proto-Indo-European *h₁n̥gʷnis
Latin ignis ‘fire’
Latin ignire ‘to set on fire, ignite’
Latin ignītus ‘ignited, set on fire’
English ignite
Today it means
noun A form of rectifier having a pool of mercury as cathode.
Language periods are conventional ranges, not dates for this word.
Etymograph / ignitron