mythi
Multiple Entries:mythi mythus
Concise Oxford English Dictionary © 2008 Oxford University Press:
mythi/ˈmɪθiː/
plural form of mythus.
Concise Oxford English Dictionary © 2008 Oxford University Press:
mythus /ˈmʌɪθəs, ˈmɪθəs/
▶noun (pl. mythi /-θʌɪ/) technical a myth or mythos.
– origin C19: mod. L.
'mythi' also found in these Oxford entries:

