Where does “Matterhorn” come from?

Matterhorn derives from German Horn, from Middle High German mate and Old High German horn, ultimately from Proto-Indo-European ḱerh₂- meaning "head" or "horn."

Ancestry of “Matterhorn”, step by step

Step	Language	Word	Meaning
1	German	Matterhorn	—
2	German	Matte	mat; meadow
3	Middle High German	matte	—
4	Old High German	matta	—
5	Latin	matta	nominative feminine singular of mattus;...
6	Latin	mattus	drunk, intoxicated
7	Latin	maditus	—
8	Latin	madere	present active infinitive of madeō; to be wet; be...
9	Latin	madeō	—
10	Proto-Indo-European	meh₂d-	to be wet, to become wet; to meet, approach,...

Every word from Proto-Indo-European meh₂d- →

Matterhorn — Etymology, Origin & Word History | Etymology Explorer