Where does “Dickte” come from?

Dickte (German) comes from German dick, from Middle High German dicke, from Old High German dicchī, from Old High German -ī, from Proto-West Germanic -ī, from Proto-Germanic -į̄, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

Dickte (German): width of a letter