Letters that make surface-assimilative
s, a, e, f, l, c, m, r, t, i, u, v are letters that make 'surface-assimilative'
Words within surface-assimilative
RF, lat, mi, fa, la, ti, si, surf, ACE, MI, face, AC, mil, at, SI, SS, assimilative, iv, il, ace, surface, CE, as, ass, IV, Ur, Sur, AS, IL, LA, Ac, As, At, Ce, La, Rf, Si, Ti are words within 'surface-assimilative'