English

tristable

From tri- + stable.

Formed from tri- + stable

Proto-Indo-European *tri- ‘three, threefold’

Proto-Italic *tri- ‘three, tri-’

English tri-

Proto-Indo-European *steh₂- ‘to stand’

…

Proto-Italic *staðlom ‘place’

Latin stabulum ‘stable, dwelling’

Anglo-Norman estable ‘stable’

Middle English stable ‘stable (building)’

Today it means

adj Having three stable states

Language periods are conventional ranges, not dates for this word.

Etymograph / tristable