rämna

Etymology
From, equivalent to. -mn- via the sound change -fn- > -mn-, compare (< Old Norse ) and, , formed in the same manner.

Verb

 * 1) (violently) crack

Usage notes
Whereas rämna signifies a large, violent crack, signifies a smaller one. Thus, one would say that "marken rämnar" (the ground crumbles), but "glaset sprack" (the glass cracked).

Noun

 * 1) a big crack