Where does “stationarity” come from?

Stationarity comes from English stationary, from Latin stationarius, derived from Latin stare meaning "to stand," ultimately from Proto-Indo-European steh₂- with the same sense.

stationarity (English): The condition of being stationary; The condition...

Definitions

  1. The condition of being stationary; The condition...

Ancestry of “stationarity”, step by step

stationarity traces back through two separate lines of ancestry.

via English stationary

StepLanguageWordMeaning
1EnglishstationaryNot moving; incapable of being moved; unchanging
2Latinstationarius
3Latinstatiōoutpost, picket
4Latin-tiōtion, -ation, -ing
5Latindissertātiō(spoken) dissertation, discourse, disquisition
6Latindissertusarranged, disposed; explained
7Latindissereresecond-person singular future passive indicative...
8Latindis-asunder, apart, in two; reversal, removal;...
9Latincalceusshoe
10Latincalxlimestone; chalk; the finish line
11Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via English ity

StepLanguageWordMeaning
1Englishity
2Ingrian-uUsed to form nouns from verbs

Words derived from “stationarity

Every word from Ancient Greek χάλιξEvery word from Latin -tiōEvery word from Latin dis-