Where does “mistrustful” come from?

Mistrustful derives from English mistrust and English trust, with the -ful suffix from Old English, ultimately tracing to Proto-Indo-European roots mey- and pleh₁- meaning to increase or fill.

mistrustful (English): Having mistrust, lacking trust; Expressing or...

Definitions

  1. Having mistrust, lacking trust; Expressing or...

Ancestry of “mistrustful”, step by step

mistrustful traces back through two separate lines of ancestry.

via English mistrust

StepLanguageWordMeaning
1EnglishmistrustLack of trust or confidence; distrust, untrust;...
2Englishmis-bad or wrong; badly or wrongly; lack or failure;...
3Middle Englishmys-mis- badly, wrongly
4Old Englishmis-bad, badly, wrong, wrongly; lack or failure
5Proto-Germanicmissa-mis-, badly, wrongly
6Proto-Indo-Europeanmittomutual, reciprocal
7Proto-Indo-Europeanmeyth₂-to hurt; to exchange, remove; to replace, to...

via English ful

StepLanguageWordMeaning
1Englishful

Words derived from “mistrustful

Every word from Proto-Indo-European meyth₂-