Where does “дифференциальный” come from?

дифференциальный (Russian) comes from Russian дифференциа́л, from German Differential, from Latin differentialis, from Latin differentia, from Latin differēns, from Latin differre, from Latin differo, from Latin dis- — small stone, pebble; gravel, rubble.

дифференциальный (Russian): differential

Definitions

differential

Ancestry of “дифференциальный”, step by step

Step	Language	Word	Meaning
1	Russian	дифференциа́л	differential
2	German	Differential	differential
3	Latin	differentialis	differential
4	Latin	differentia	difference; diversity; nominative neuter plural...
5	Latin	differēns	spreading, scattering, dispersing, separating
6	Latin	differre	present active infinitive of differō
7	Latin	differo	I carry different ways, spread, scatter,...
8	Latin	dis-	asunder, apart, in two; reversal, removal;...
9	Latin	calceus	shoe
10	Latin	calx	limestone; chalk; the finish line
11	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

Every word from Ancient Greek χάλιξ →Every word from Latin dis- →Every word from Latin calx →