English
futurable
From future + -able.
Formed from future + -able
Proto-Indo-European *bʰuH- ‘to become’
Latin sum ‘to be’
Latin futūrus ‘about to be’
Old French futur
Middle English future ‘a future action or doing’
English future
Today it means
adj Capable of existing or occurring in the future: possible.
Language periods are conventional ranges, not dates for this word.
Etymograph / futurable