Low and Lesser

Low adjective - Being near the equator.

Lesser is a synonym for low in short topic. In some cases you can use "Lesser" instead the word "Low" as an adjective or an adverb, when it comes to topics like over.

Lesser adjective - Having not so great importance or rank as another.

Low is a synonym for lesser in inferior topic. You can use "Low" instead the word "Lesser" as an adjective or an adverb, if it concerns topics such as over.