How do you spell Deleterious?
Correct spelling
deleterious
Remember: DELETE + RIOUS, not 'deletorious' - it's about harm, not deletion
Why is deleterious spelled this way?
From Greek deleterios, destructive. DELEISTHAI (to hurt). Something deleterious causes harm — damage that accumulates quietly until the toll becomes visible.
Common misspellings of deleterious
deletoriousdeliteriousdeleiterious
Example
The deleterious effects of prolonged stress on cardiovascular health became apparent after months of overwork.