logorrhea
Concise Oxford English Dictionary © 2008 Oxford University Press:
logorrhoea /ˌlɒgəˈrɪə/ (US logorrhea)
▶noun a tendency to extreme loquacity.
– derivatives
logorrhoeic adjective.
logorrhoeic adjective.
– origin early 20th cent.: from Gk logos ‘word’ + rhoia ‘flow’.
'logorrhea' also found in these Oxford entries:

