Tarshish

a Sanscrit or Aryan word, meaning "the sea coast." (1.) One of
the "sons" of Javan (Gen. 10:4; 1 Chr. 1:7).

(2.) The name of a place which first comes into notice in the
days of Solomon. The question as to the locality of Tarshish has
given rise to not a little discussion. Some think there was a
Tarshish in the East, on the Indian coast, seeing that "ships of
Tarshish" sailed from Eziongeber, on the Red Sea (1 Kings 9:26;
22:48; 2 Chr. 9:21). Some, again, argue that Carthage was the
place so named. There can be little doubt, however, that this is
the name of a Phoenician port in Spain, between the two mouths
of the Guadalquivir (the name given to the river by the Arabs,
and meaning "the great wady" or water-course). It was founded by
a Carthaginian colony, and was the farthest western harbour of
Tyrian sailors. It was to this port Jonah's ship was about to
sail from Joppa. It has well been styled "the Peru of Tyrian
adventure;" it abounded in gold and silver mines.

It appears that this name also is used without reference to
any locality. "Ships of Tarshish" is an expression sometimes
denoting simply ships intended for a long voyage (Isa. 23:1,
14), ships of a large size (sea-going ships), whatever might be
the port to which they sailed. Solomon's ships were so styled (1
Kings 10:22; 22:49).