Nominal derivational morphology is also often achieved through suffixing. For instance, the instrumental suffix "-(n)nompɨh" is used with verb stems to form nouns used for the purpose of the verb: "katɨnnompɨh" "chair" is derived from "katɨ" "sit"; "puinompɨh" "binoculars" is derived from "pui" "see". The characterization suffix "-kantɨn" be used with a root noun to derive a noun characterized by the root: "hupiakantɨn" "singer" is derived from "hupia" "song"; "puhakantɨn" "shaman" is derived from "puha" "power", as one characterized by power.