The name Ptolemy or Ptolemaeus comes from the Greek Ptolemaios, which seems to mean warlike or son of war. There have been many people named Ptolemy or Ptolemaeus, the most famous of whom are the Greek-Egyptian astronomer Claudius Ptolemaeus, and the Macedonian founder and ruler of the Ptolemaic Kingdom in Egypt, Ptolemy I Soter. The following sections summarise the history of the name, some of the people named Ptolemy, and some of the other uses of this name.
According to Georg Autenrieth the English name Ptolemy comes from the Ancient Greek name Πτολεμαῖος (Ptolemaios), "warlike" or "son of war". Autienrieth renders the meaning of the name to be an adjective from πτόλεμος (ptólemos), explained as a Homeric form of πόλεμος (pólemos), "war". A nephew of Antigonus I was called Polemaeus, the normal form of the adjective. Ptolemaios is first attested in Homer's Iliad and is the name of an Achaean warrior, son of Piraeus, father of Eurymedon.
The name Ptolemaios varied over the years from its roots in Ancient Greece, appearing in different languages in various forms and spellings. The original form, and some of the variants, are listed here in the languages relevant to the history of the name.
The name Ptolemy spread from its Macedonian origins to enter other languages in the Middle and Near East during the Hellenisation that followed the conquest of the known world by Alexander the Great.
The Aramaic name Bar Talmai (Greek Bartolomaios and English Bartholomew) may be related. Alternatively, it may have a Hebrew derivation.
is formed from this name by the Greek feminine adjectival ending -i(d)s (found also in Iliad, Aeneid).