כַּפְתֹּרKaphtôr

proper name [of a territory]: probably Crete (Genesis 10:14; Jeremiah 47:4; Amos 9:7; Deuteronomy 2:23)

Pronunciation: kaf-tore' · Hebrew/Aramaic (Old Testament) · H3731

Same root

כַּפְתֹּרkaphtôr · H3730a chaplet; but used only in an architectonic sense, i.e. the capital of acolumn, or a wreath-like button or disk on the candelabrum
כַּפְתֹּרִיKaphtôrîy · H3732a Caphtorite (collectively) or native of Caphtor

Where it appears

Appears 3 times in the Bible.

Deuteronomy 2:23 A similar thing happened when the Caphtorites from Crete invaded and destroyed the Avvites, who had lived in villages in the area of Gaza.)
Jeremiah 47:4 “The time has come for the Philistines to be destroyed, along with their allies from Tyre and Sidon. Yes, the Lord is destroying the remnant of the Philistines, those colonists from the island of Crete.
Amos 9:7 “Are you Israelites more important to me than the Ethiopians?” asks the Lord. “I brought Israel out of Egypt, but I also brought the Philistines from Crete and led the Arameans out of Kir.

Source: Brown, Driver and Briggs, Hebrew and English Lexicon of the Old Testament (1906), public domain; markup by unfoldingWord, CC BY (github.com/unfoldingWord/Brown-Driver-Briggs-Enhanced).