Goidelic
Concise Oxford English Dictionary © 2008 Oxford University Press:
Goidelic /gɔɪˈdɛlɪk/
▶noun the northern group of Celtic languages, including Irish, Scottish Gaelic, and Manx. Compare with Brythonic. ▶adjective relating to or denoting Goidelic.
'Goidelic' also found in these Oxford entries:

