Of a deep reddish purple colour, like that of the dye.

comparative form of mad: more mad

(transitive) To make angry. / (transitive) To make insane; to inflame with passion. / (intransitive, obsolete) To become furious.

Causing frustration or anger. / Leading to insanity.

present participle of madden

In a maddening manner.

Rubia tinctorum (common madder) / Any plant of the same family (Rubiaceae) as the madder.

superlative form of mad: most mad

(archaic) second-person singular simple present form of madden

plural of madderwort