English insidious

← Middle French insidieux (mention)

← Proto-Indo-European *sed- (root)

← Latin īnsidiōsus (mention)

← Latin īnsidiae (mention)

← Latin -ōsus (mention)

← Latin īnsideō (mention)

← Latin in (mention)

← Latin sedeō (mention)

→ English insidiously (suffix)

→ English insidiousness (suffix)

→ English insidiate (mention)

→ English insession (mention)

→ English uninsidious (prefix)