Lambently

adv. [f. prec. + -LY².] In a lambent manner.

1819.  Shelley, P. Bell 3rd, VI. xxvi. In the death hues of agony Lambently flashing from a fish.

1883.  F. M. Crawford, Mr. Isaacs, xiii. 289. The blazing eyes flamed, lambently under the black brows.

1889.  Universal Rev., III. 143. Its wit played lambently over the doings of Society.