A few intransitives derive from transitive roots through the suffix "-ek", though this is a fossilized suffix and is no longer productive. For example, "dierek" (to be found) from "diar" (to find); "dilipek" (for a thatch roof to be mended) from "dilip" (to mend a thatch roof). Sometimes this results in two intransitive derivations of a single transitive root, usually with a semantic nuance: transitive "wengid" (to wring), intransitive "wengiweng" (to wring/be wrung), intransitive "wengidek" (to be twisted); transitive "widinge" (to deceive), intransitive "widing" (to deceive/be deceived); intransitive "widingek" (to be deceitful). The suffix was apparently much more productive earlier in the language's history, even among active verbs.