Ceremonially

adv. [f. as prec. + -LY².] In a ceremonial manner; in relation to ceremonies or the ceremonial law.

1643.  Milton, Doctr. Divorce, v. David … did eat the Shew-bread … which was ceremonially unlawful.

a. 1679.  T. Goodwin, Wks., IV. IV. 168 (R.). Persons clean or unclean ceremonially.

1872.  J. G. Murphy, Comm., Lev. vi. 11, 88. Ceremonially or essentially holy.