English retinol

← English retina (suffix)

← English ol (suffix)

→ English transthyretin (affix)

→ English retinoid (suffix)

→ English dehydroretinol (affix)

→ English retinyl (suffix)

→ English dihydroretinol (prefix)

→ English -retin- (mention)

→ English -retin (mention)

→ Japanese レチノール (borrowed)