Ge-minsian

According to the Old English Dictionary:

ge-minsian

p. ode To lessen, impair the credit of :-- Heó goda meaht forhogde and mec swíðast geminsade, Jul. 621. Ne mæg ǽnig man Godes mihta ne his mǽrða geminsian ne ǽnig ðing áwyrdan, Wlfst. 35, 3. ge-minsian