Kalmar “decenium” suna ne da ke nuni da tsawon shekaru goma. An samo shi daga kalmar Latin "decenium," wanda shine haɗin "decem," ma'anar "goma," da "-ennium," ma'ana "shekaru." Don haka, decenium kalma ce da ake amfani da ita don kwatanta shekaru goma, wanda shine tsawon shekaru goma.
