One and One another

One adjective - Being the one or ones of a class with no other members.

One another and one are semantically related in manner topic. In some cases you can use "One another" instead a pronoun "One", when it comes to topics like each in his own way.

One and one another are semantically related in manner topic. You can use "One" instead a pronoun phrase "One another", if it concerns topics such as each in his own way, each one.