What is the meaning of ᛇ?

A letter of the Runic alphabet, present in the Elder Fuþark (ᛇ) and the Anglo-Saxon Fuþorc (ᛇ, called ēoh) representing /e͜o(ː)/ or /ç/ and associated with the yew.

the thirteenth letter of the Old English runic alphabet, representing /e͜o(ː)/ or /ç/, depending on its use as a vowel or a consonant

Source: wiktionary.org