Where does “spiegelglad” come from?

spiegelglad (Dutch) comes from Dutch spiegel, from Middle Dutch spiegel, from Medieval Latin speglum, from Latin speculum, from Proto-Italic -klom, from Proto-Indo-European -tlom, from Proto-Indo-European -trom, from Proto-Indo-European -tḗr — Derives agent nouns from verbs, denoting someone...

spiegelglad (Dutch): very slippery

Definitions

  1. very slippery

Ancestry of “spiegelglad”, step by step

spiegelglad traces back through two separate lines of ancestry.

via Dutch spiegel

StepLanguageWordMeaning
1Dutchspiegelmirror; stern of a ship; level
2Middle Dutchspiegel
3Medieval Latinspeglum
4Latinspeculuma looking-glass, mirror
5Proto-Italic-klom
6Proto-Indo-European-tlomAlternative form of *-trom
7Proto-Indo-European-tromForms nouns denoting a tool or instrument
8Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via Dutch glad

StepLanguageWordMeaning
1Dutchgladsmooth, polished; slippery; completely, entirely
2Middle Dutchglat
3Old Dutchglad
4Proto-Germanicgladazshining, shiny, radiant; bright, cheery,...
5Proto-Indo-Europeangʰladh-
6Proto-Indo-Europeanǵʰel-to shine, glimmer, glow; to shimmer, gleam;...
Every word from Proto-Indo-European -tḗrEvery word from Proto-Italic -klomEvery word from Latin speculum