The word: Gregarious

Dictionary definition: (of a person) Fond of company; sociable.
(Of animals) Living in flocks or loosely organized communities.
(Of plants) growing together in clusters, but not matted.

Origins: From Latin gregarius (belonging to a flock), from greg- (stem of grex-). Ultimately from Indo-European root ger- (to gather) which is also the source of such words as aggregate, congregation, egregious, and segregate.

Use in a sentence: I'm a well-balanced woman, and fairly gregarious too.

Synonyms: social, genial, outgoing, convivial, companionable, friendly, extroverted.