Lesser

1. A thing that is of smaller size, value, importance etc.

   The greater sand hills increasingly do not migrate, but almost all lessers do.

adjective

Of two (or, rarely, more than two) things: the smaller in size (littler), in value, in importance etc.

1. Small in size.

   This is a little table.

2. Insignificant, trivial.

   It's of little importance.

3. Very young.

   Did he tell you any embarrassing stories about when she was little?

4. (of a sibling) Younger.

   This is my little sister.

5. (also Little) Used with the name of a place, especially of a country or its capital, to denote a neighborhood whose residents or storekeepers are from that place.
6. Small in amount or number, having few members.

   little money;  little herd

7. Short in duration; brief.

   I feel better after my little sleep.

8. Small in extent of views or sympathies; narrow; shallow; contracted; mean; illiberal; ungenerous.