English
future-proof
From future + -proof.
Formed from future + -proof
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adj Capable of surviving changes made in the future; not liable to become outdated.
Language periods are conventional ranges, not dates for this word.
Etymograph / future-proof