The Collaborative International Dictionary
Reddle
Reddle \Red"dle\ (r?d"d'l), n. [From Red; cf. G. r["o]thel. Cf. Ruddle.] (Min.) Red chalk. See under Chalk.
Wiktionary
reddle
n. Red ochre vb. To redden.
WordNet
Usage examples of "reddle".
Then one of you will be bright scarlet to the end of his days, as the reddle never comes off the skin at all, and the other will have to soak in turpentine before the dye will consent to move.