cimer (Catalan) comes from Catalan cim, from Catalan cima, from Latin cȳma, from Ancient Greek κῦμα, from Proto-Hellenic kūmə, from Proto-Indo-European ḱúh₁mn̥, from Proto-Indo-European -mn̥ — Creates action nouns or result nouns from verbs.
cimer (Catalan): topmost