rīm-cræftig, adj: skillful in computation. (REEM-KRAFT-ee)

Tables and treatises on the computation of the calendar. S. England (London?), c. 1425. London, Wellcome Library, MS 8515. [commons.wikimedia.org] This file comes from Wellcome Images, a website operated by Wellcome Trust, a global charitable foundation based in the United Kingdom. Refer to Wellcome blog post (archive). This file is licensed under the Creative Commons Attribution 4.0 International license.