roetum Save DMLBS roetum [AN roet < rotulatus p. ppl. of rotulare], (cogged) wheel of watermill. 1331 rex debet invenire tortas et allechones pro ~o ‥ et omnia ‥ necessaria ad ‥ molendinum faciendum (KR Ac 89/15) S. Jers. I 9.