English
extincture
From extinct + -ure.
Formed from extinct + -ure
Proto-Indo-European *stengʷ- ‘to push’
Latin stinguō ‘to extinguish, put out, quench’
Latin exstinguō ‘to extinguish, put out, quench’
Latin extīnctus ‘extinguished, quenched’
Middle English extinct ‘eliminated, eradicated, extinguished’
English extinct
Today it means
noun extinction
Language periods are conventional ranges, not dates for this word.
Etymograph / extincture