Where does “speculatory” come from?

speculatory (English) comes from Latin speculatorius, from Latin speculator, from Latin speculor, from Latin specula, from Latin spes, from Proto-Italic spēs, from Proto-Indo-European spéh₁s, from Proto-Indo-European speh₁- — to succeed, to prosper.

speculatory (English): Intended or adapted for viewing or espying;...

Definitions

  1. Intended or adapted for viewing or espying;...

Ancestry of “speculatory”, step by step

StepLanguageWordMeaning
1LatinspeculatoriusFor spying or scouting
2Latinspeculatorspy, scout; explorer, investigator; second-person...
3LatinspeculorI watch, I observe; I examine, I explore; I spy
4Latinspeculawatchtower, lookout; nominative plural of...
5Latinspeshope; expectation, anticipation, apprehension
6Proto-Italicspēshope
7Proto-Indo-Europeanspéh₁sprosperity, success
8Proto-Indo-Europeanspeh₁-to succeed, to prosper
Every word from Proto-Indo-European speh₁-