sissa

Verb

 * 1) to calm down, to reassure, to soothe

Usage notes

 * sissa teg! - calm down!
 * sissa seg - to calm down
 * sissast (reflexive) - to calm down
 * (reflexive past tense) fólkið sissaðist aftur - the people calmed down again

Etymology
From.

Verb

 * 1)  to seat