What is the meaning of Areca?

Any member of the genus Areca of about fifty species of single-stemmed palms in the family Arecaceae, found in humid tropical forests.

Source: OED

Source: Krishnamurti, 2003. "The Dravidian Languages", p.9

areca; betel palm (Areca catechu, an Asiatic palm)

areca; betel palm (Areca catechu, an Asiatic palm)

Source: wiktionary.org