trym

So far as the form is concerned, trymman, trymian would naturally become trym, trim by 1500; the sense ‘make fit, make ready, prepare, fit out' might also arise out of the OE.

languagehat.com: DIGHT. 2005

It I jus 'knew someone was carryin on trym ter help him a bit ... teachin' him, yeh know. '

Harry Potter and the Order of the Phoenix Rowling, J. K. 2003

D.A. 3.19.1: Gorgeous attire, by art made trym, and clene,

"Songes and Sonettes written by the ryght honorable Lorde Henry Haward late Earle of Surrey, and other" 1557

They bynde in and loade the tender bodies wyth vnhandsome garmentes to set them out, as some trym apes, in mans apparel, and otherwayes they weaken their children, and they neuer more tenderlye be afrayed of their health, then when cõmunication is begon to be had of lernynge, that is of that thynge whych of al other is moste wholesom and necessarye.

The Education of Children Desiderius Erasmus 1502

3.25.7: A wife will trym thy house: no wife? then art thou free.

"Songes and Sonettes written by the ryght honorable Lorde Henry Haward late Earle of Surrey, and other" 1557