What is the meaning of ᛟ?

A Runic character, called odal or othala (*ōþalą) in the Elder Futhark and ēþel in the Anglo-Saxon Futhorc, representing a long or short /o/ sound, and associated with inheritance and ancestral land.

a letter of the Old English runic alphabet, representing /œ/ and named ēþel (“homeland”)

Source: wiktionary.org