demulcent
Concise Oxford English Dictionary © 2008 Oxford University Press:
demulcent /dɪˈmʌls(ə)nt/
▶adjective Medicine relieving inflammation or irritation.
– origin C18: from L. demulcent-, demulcere ‘to stroke caressingly’, from de- ‘away’ + mulcere ‘soothe’.
'demulcent' also found in these Oxford entries:

