optimistic

adj

Etymology: Etymology tree Proto-Indo-European *h₁ep-der. Proto-Indo-European *h₁épsder. Proto-Indo-European *h₁epi Proto-Indo-European *-tm̥mos ? Latin optimus Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Indo-European *-mos Proto-Indo-European *-mós Ancient Greek -μός (-mós) Ancient Greek -ῐσμός (-ĭsmós)der. Latin -ismusbor. French -isme French optim(isme) ▲ Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Hellenic *-tās Ancient Greek -τής (-tḗs) Ancient Greek -ῐστής (-ĭstḗs)bor. Latin -istabor. French -iste French optimistebor. English optimist Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -iquebor. Middle English -ik English -ic English optimistic From optimist + -ic.

1. Expecting the best in all possible ways.

   “in an optimistic mood”

   “optimistic plans”

2. Allowing other processes to perform transactions on the same data at the same time, and checking for conflicts only when changes need to be written back.

   “optimistic concurrency”

   “optimistic locking”