English credulous

← Proto-Indo-European *ḱerd- (root)

← Latin crēdulus (borrowed)

← Latin crēdō (mention)

→ English credulity (suffix)

→ English credulousness (suffix)

→ English credulously (suffix)

→ English overcredulous (prefix)

→ English discredulous (prefix)

→ English uncredulous (prefix)

→ English omnicredulous (prefix)

→ English ultracredulous (prefix)