from
Easton's 1897 Bible Dictionary
Accho
sultry or sandy, a town and harbour of Phoenicia, in the tribe
of Asher, but never acquired by them (Judg. 1:31). It was known
to the ancient Greeks and Romans by the name of Ptolemais, from
Ptolemy the king of Egypt, who rebuilt it about B.C. 100. Here
Paul landed on his last journey to Jerusalem (Acts 21:7). During
the crusades of the Middle Ages it was called Acra; and
subsequently, on account of its being occupied by the Knights
Hospitallers of Jerusalem, it was called St. Jean d'Acre, or
simply Acre.