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Webster 1913 Edition

(bŏm-bĭl′ĭ-ŭs)

Adj.

[L.

bombylius

a bumblebee, Gr.

βομβυλιός

Buzzing, like a bumblebee;

as, the

bombylious

noise of the horse fly

[Obs.]

Derham.

bombylious ‎(comparative more bombylious, superlative most bombylious)

(obsolete) Buzzing, like a bumblebee.
(Can we find and add a quotation of Derham to this entry?)