Siwash
Concise Oxford English Dictionary © 2008 Oxford University Press:
Siwash /ˈsʌɪwɒʃ/
▶noun derogatory
- 1 an American Indian of the northern Pacific coast.
- 2 another term for Chinook Jargon.
– origin Chinook Jargon, from Canad. Fr. sauvage ‘wild’.
'Siwash' also found in these Oxford entries:

