the.com/misappropriation

means Taking something — usually money or property entrusted to you — and using it for your own purposes without permission or right.

from Built from the Latin-rooted 'appropriate,' meaning to make something one's own (from proprius, 'one's own,' the same root giving us 'property' and 'proper'), plus the negative prefix 'mis-,' meaning wrongly or badly. So the word is literally 'wrongly making something one's own' — a polite, procedural-sounding label stitched directly onto the crime of theft.