IPA: /sɪˈvɪərər/
KK: /sɪˈvɪrər/
More strict or harsh than something else.
The severer rules at the new school made it harder for students to relax.
Severer → It is formed from "severus" (from Latin, meaning serious or strict) and the comparative suffix "-er" (indicating a higher degree). The word "severer" means more serious or strict than something else.
Think of 'severe' as being serious or strict, and when you add '-er', it indicates a greater degree of seriousness or strictness.