From the second edition (1989):

moroˈlogical

Humorously pedantic.

[f. morology + -ical.]

Pertaining to ‘morology’. Hence moroˈlogically adv.

1607 R. C[arew] tr. Estienne's World of Wonders 269 The old maner [of preaching] was, to make one part Allegoricall, another Anagogicall, and a third Tropological: whereas they should haue made one part Morological, another Mythological, and a third Pseudological. 1865 Visct. Strangford Lett. & P. (1878) 164 Morologically speaking, the production is no richer or sillier than your prize-fool from Gloucestershire. 1867 —— Select. (1869) I. 320 If the condition of liberalism be insisted upon, as well as the morological‥conditions of mind necessary to such a question, there is but one man in the House who can put it.