Hastings' Dictionary of the Bible (1898)
SON. The Hebrews used all terms of relationship in a much looser way than we do. "'Son' implies almost any kind of descent or succession. ' on of a year' - i.e., a year old; 'son of a bow' - i.e., an arrow." "Son," when it expresses human connection, is used for grandson - e.g.. Gen 29:2 - and for remoter descendants - e.g. Matt 22:42.