Significatio vocis Acco | Babel Free

Definitiones

1. a Latin proper name borrowed from Celtic/Gaulish male name
   declension-3
2. one of the leading chiefs of the Celtic tribe "Senones", mentioned by Julius Caesar.
   declension-3

Exempla

“cognitō ejus adventū Accō, quī prīnceps ejus cōnsilī fuerat, jubet in oppida multitūdinem convenīre.”

Upon learning of his arrival, Acco, who had been his chief advisor, ordered the multitude to assemble in the towns.

Gradus CEFR