UrsprungFrom Old Swedish loppa, from Proto-Germanic *luppōn-, which could be related to *hlaupaną (“to leap, jump”), see also German lüpfen.
Formerloppa(indefinite, nominative, singular) · loppas(genitive, indefinite, singular) · loppan(definite, nominative, singular) · loppans(definite, genitive, singular) · loppor(indefinite, nominative, plural) · loppors(genitive, indefinite, plural) · lopporna(definite, nominative, plural) · loppornas(definite, genitive, plural)