Depending on context, slow can be translated as:
langsam
träge
schwerfällig
schleppend
bummelig
begriffstutzig
langsam
The best answer is the Italian word for (Slow) and this was/is used on Marine telegraphs- in one form the four power settings were ( avanti assumed) Lentissimo ( dead slow) Lento ( slow) Mezzo ( half) and Tutti ( Full speed) an alternate theory has it comes from the German word Lenz for Spring. I"ll stand by the Slow speed setting!
Chre is not a German word
Fast when young but with age they do slow down.
"mit" is the German word for "with".
The German word for their is "Ihre."
The word FROM in German is von
The German word for when is wenn.
The word for is in German - " ist "
The German word for he is er.
The German word for "Who" is "Wer".
German is not a compound word.