Where does “sondergleichen” come from?

sondergleichen (German) comes from German gleich, from Middle High German gelīch, from Old High German gilīh, from Proto-West Germanic galīk, from Proto-Germanic galīkaz, from Proto-Indo-European leyǵ- — to bind, tie.

Ancestry of “sondergleichen”, step by step

sondergleichen traces back through two separate lines of ancestry.

via German gleich

StepLanguageWordMeaning
1Germangleichequal; same; very similar; same; identical
2Middle High Germangelīch—
3Old High Germangilīhequal
4Proto-West Germanicgalīkalike, similar
5Proto-Germanicgalīkazalike, similar; equal
6Proto-Indo-Europeanleyǵ-to bind, tie

via German sonder

StepLanguageWordMeaning
1Germansonderwithout; except; not including
2Proto-Germanicsundrazseparate, isolated, alone
3Proto-Indo-Europeansnter-—
Every word from Proto-Indo-European leyǵ- →Every word from Proto-Germanic galīkaz →Every word from Proto-West Germanic galīk →