Adjectival nouns are simply identical in form to adjectives of a particular gender and decline accordingly.

In pre-Christian Chuuk, an incantor (awarawar) contacted spirits during ecstatic behavior {Kubary 1969:22], with a lineage chief acting as middleman between caller and spirit, asking questions and interpreting the incantor's mumblings.

The Scottish privy council had power to put state prisoners to the question.

As early as 1898, Monet had thought of combining a series of such waterscapes into one wall-filling frieze […]