English
hyperoptimistic
From hyper- + optimistic.
Formed from hyper- + optimistic
Proto-Indo-European *úp
Proto-Indo-European *upér ‘over, above’
Proto-Hellenic *hupér
Ancient Greek ὑπέρ ‘over’
English hyper-
Today it means
adj Extremely optimistic.
Language periods are conventional ranges, not dates for this word.
Etymograph / hyperoptimistic