groundling Definition

groundling
noun

1. Any of various small freshwater fishes, especially loaches, that live close to the bottom of a river or lake.
2. A low-growing or creeping plant.
3. colloq
Someone on the ground as opposed to one in an aircraft.
4. historical
Someone standing in the pit (ie the cheapest area) of an Elizabethan theatre.
5. derog
Someone of inferior tastes.

Etymology: Early 17c in senses 1 and 4.