sibling-in-law

Etymology
From.

Noun

 * 1) A relative of one's generation, separated by one degree of marriage:
 * 2) The sibling of one's spouse.
 * 3) The spouse of one's sibling.
 * 4)  Co-sibling-in-law: A relative of one's generation, separated by two degrees of marriage:
 * 5) The spouse of the sibling of one's spouse.
 * 6) The sibling of the spouse of one's sibling.

Translations

 * Danish: svigersøskende
 * Dutch:
 * German:
 * Ido:
 * Norwegian:
 * Bokmål: svigersøsken
 * Nynorsk: svigersøsken, svigersysken
 * Swedish: svärsyskon
 * Volapük: