detty

For as mother of wisdom she receiveth all that cometh out of every country of the world, and helpeth them in all that they need, and ruleth all peaceably, and as a servant of soothness, she sheweth herself detty to wise men and unwise.

Mediaeval Lore from Bartholomew Anglicus Robert Steele 1902

For his stomach had indignation of meat seven weeks continually, and of drink, so that unnethe he might retain any meat, and was strait and short-breathed, but for all that he spared not the travail of lecture and of books, and every day among the detty travail of service and of psalms, he taught his disciples in lessons and in questions.

The Golden Legend, vol. 7 1230-1298 1900