Where does “Sperrrad” come from?

Sperrrad (German) comes from German rad, from English rad, from English radiation, from Latin radiatio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere — small stone, pebble; gravel, rubble.

Sperrrad (German): ratchet wheel

Definitions

  1. ratchet wheel

Ancestry of “Sperrrad”, step by step

Sperrrad traces back through two separate lines of ancestry.

via German rad

StepLanguageWordMeaning
1Germanradwheel
2EnglishradClipping of radical; excellent; A non-SI unit of...
3EnglishradiationThe shooting forth of anything from a point or...
4Latinradiatioglittering, shining, radiation
5Latin-tiōtion, -ation, -ing
6Latindissertātiō(spoken) dissertation, discourse, disquisition
7Latindissertusarranged, disposed; explained
8Latindissereresecond-person singular future passive indicative...
9Latindis-asunder, apart, in two; reversal, removal;...
10Latincalceusshoe
11Latincalxlimestone; chalk; the finish line
12Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via German sperren

StepLanguageWordMeaning
1Germansperrento bar; to space out the letters of a word or...
2Middle High Germansperren
3Old High Germansperranto put up rafters, beams; to barricade
4Proto-Germanic*sparrijan
5Proto-Germanic*sparrijanąto bar, to block
Every word from Ancient Greek χάλιξEvery word from Latin -tiōEvery word from Latin dis-
Sperrrad — Etymology, Origin & Word History | Etymology Explorer