According to the Dictionary of the Chinook Jargon: Or Indian Trade Language of the North Pacific Coast (1973), the word “Cultus” means “worthless; good for nothing; without purpose”.
The Halq’eméylem name for Cultus Lake is: Soowhalie.
References:
- Shorey Publiations. (1973). Dictionary of the Chinook Jargon: Or Indian Trade Language of the North Pacific Coast. Seattle, W.A.: Shorey Publications
Photograph caption: View of Cultus Lake, looking towards Lindell Beach and the Columbia Valley, ca.1943 [Chilliwack Museum and Archives, P5833].