رسخ rasaka u (رسوخ rusūk) to be firmly established, be deeply rooted (في in s.th.); to be firm, solid, stable; to be conversant, be thoroughly familiar (في with s.th.), be well versed, be at home (في in s.th., in a field); to seep in; to permeate (في a fabric); to become fast (color or dyes in a fabric) II and IV to make (هـ s.th.) take root(s), establish (هـ s.th.); to implant (هـ s.th.); to secure, make fast, fix firmly, ground (هـ s.th.) │ارسخ الشيء في ذهنه (dihnihī) to impress or inculcate s.th. upon s.o.