Where does “contragravity” come from?

contragravity (English) comes from English gravity, from French gravité, from Latin gravitās, from Latin -tās, from Proto-Indo-European -teh₂ts, from Proto-Indo-European -teh₂, from Proto-Indo-European -tós — Creates verbal adjectives from verb stems.

contragravity (English): antigravity

Definitions

  1. antigravity

Ancestry of “contragravity”, step by step

contragravity traces back through two separate lines of ancestry.

via English gravity

StepLanguageWordMeaning
1EnglishgravityThe state or condition of having weight; weight;...
2Frenchgravitégravity
3Latingravitāsweight, heaviness
4Latin-tāsty, -dom, -hood, -ness, -ship
5Proto-Indo-European-teh₂tsUsed to form nouns representing state of being
6Proto-Indo-European-teh₂Used to form nouns representing state of being
7Proto-Indo-European-tósCreates verbal adjectives from verb stems

via English Contra

StepLanguageWordMeaning
1EnglishContraA member of any of various rightist guerrilla...
2Latincontrāagainst
3Latinubīwhere? in what place?, in which place?
4Latincubī
5Proto-Italic*kʷuðeiwhere
Every word from Proto-Indo-European -tós