verbreitertsten
Verbreitertsten is not a standard dictionary entry in contemporary German. It is sometimes encountered as a rare or nonstandard inflected form related to the participle or adjective derived from verbreiten (to spread). In everyday and formal writing, German speakers generally express the idea of “most widely spread” with established constructions rather than this form. The usual, recommended forms are am weitesten verbreitet (the most widely spread) or die am weitesten verbreiteten (the ones that are most widely spread), depending on number and gender of the noun.
Standard German prefers the periphrastic superlative am weitesten verbreitet for predicative use, and the attributive form
The root verb verbreiten yields several related forms (verbreitet, verbreitete, am weitesten verbreitet). The appearance of
verbreiten; weit verbreitet; am weitesten verbreitet; Verbreitung.