calcomanía
decal
calco-
tracing, copy
+
-manía
mania, obsession
Calcomanía means decal and can be thought of as calco-0 (tracing or copy0) + -manía1 (mania or obsession1), suggesting an obsession with creating copies or tracings, which is essentially what a decal is.
noun
- decalA decorative design or picture that can be transferred to another surfaceLos niños pegaron calcomanías en sus cuadernos. // The children stuck decals on their notebooks.