English
existability
From exist + -ability.
Formed from exist + -ability
Proto-Indo-European *steh₂- ‘to stand’
…
Proto-Italic *sistō
Latin sistō ‘to cause to stand; to set’
Latin exsistō ‘to arise, emerge; to exist’
French exister
English exist
Today it means
noun The possibility that something can exist.
Language periods are conventional ranges, not dates for this word.
Etymograph / existability