Where does “*糞しい” come from?

*糞しい (Japanese) comes from Japanese 糞, from Middle Chinese 糞.

Ancestry of “*糞しい”, step by step

*糞しい traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesefeces, excrement; shit, crap, garbage, trash;...
2Middle Chinese

via Japanese しい

StepLanguageWordMeaning
1Japaneseしいused to form adjectives from nouns,...
Every word from Middle Chinese Every word from Japanese