English suspicion

← English suspect (suffix)

← English ion (suffix)

← Old French sospeçon (mention)

← Old French suspecioun (mention)

← Proto-Indo-European *speḱ- (root)

← Latin suspicio (borrowed)

← Latin suspicere (mention)

← Latin sub- (mention)

← Latin specere (mention)

→ English sus (clipping)

→ English suspicionless (suffix)

→ English unsuspicion (prefix)

→ English suspicional (suffix)