Word Study
bubo
CIDE DICTIONARY
bubo, n. [LL. bubo the groin, a swelling in the groin, Gr. boubw`n.].
An inflammation, with enlargement, of a lymphatic gland, esp. in the groin, as in syphilis. [1913 Webster]
OXFORD DICTIONARY
bubo, n. (pl. -oes) a swollen inflamed lymph node in the armpit or groin.
Etymology
med.L bubo -onis swelling f. Gk boubon groin
For further exploring for "bubo" in Webster Dictionary Online