OprindelseVia German Spion, and French espion, from Italian spione. Ultimately of Germanic origin. Related to spejde and spå.
Formerspionen(definite, singular) · spioner(indefinite, plural) · spion(indefinite, nominative, singular) · spionen(definite, nominative, singular) · spioner(indefinite, nominative, plural) · spionerne(definite, nominative, plural) · spions(genitive, indefinite, singular) · spionens(definite, genitive, singular) · spioners(genitive, indefinite, plural) · spionernes(definite, genitive, plural)
Kilde: Wiktionary