* Ends in -GOs and/or -GOES *

-GOS only:

GOGO a discotheque [n -GOS]
SAGO a tropical tree [n -GOS]
SEGO a perennial herb [n -GOS]

AMIGO a friend [n -GOS]
ERUGO {aerugo=n} [n -GOS]
GREGO a hooded coat [n -GOS]
LARGO a slow musical movement [n -GOS]
MONGO {mungo=n} [n -GOS]
PARGO a food fish [n -GOS]
PENGO a former monetary unit of Hungary [n -GOS]
SARGO a silvery marine fish [n -GOS]
SORGO a variety of sorghum [n -GOS]
TRIGO {wheat=n} [n -GOS]

AERUGO a green film that forms on copper [n -GOS]
COLUGO a small mammal [n -GOS]
DRONGO a tropical bird [n -GOS]
GALAGO a small primate [n -GOS]
LANUGO fine, soft hair [n -GOS]
NONEGO all that is not part of the ego [n -GOS]
OLINGO a small mammal of Central and South America [n -GOS]
QUANGO a public administrative board [n -GOS]
RUBIGO red iron oxide [n -GOS]
STINGO a strong ale or beer [n -GOS]

HIDALGO a minor Spanish nobleman [n -GOS]
LUMBAGO pain in the lower back [n -GOS]
MENDIGO a freshwater fish [n -GOS]
PRURIGO a skin disease [n -GOS]
SAPSAGO a hard green cheese [n -GOS]
WENDIGO {windigo=n} [n -GOS]
WINDIGO an evil demon in Algonquian mythology [n -GOS]

FANDANGO a lively Spanish dance [n -GOS]
IMPETIGO a skin disease [n -GOS]
MUNDUNGO a foul-smelling tobacco [n -GOS]
PLUMBAGO {graphite=n} [n -GOS]
SOLIDAGO a flowering plant [n -GOS]
VITILIGO a skin disease [n -GOS]

CAMERLENGO a cardinal appointed treasurer of vatican [n -GOS]

-GOS or GOES:

BINGO a game of chance [n -GOS or -GOES]
BONGO a small drum [n -GOS or -GOES]
CARGO conveyed merchandise [n -GOS or -GOES]
CONGO an eellike amphibian [n -GOES] / {congou=n} [n -GOS]
IMAGO an adult insect [n -GOES or -GOS]
MANGO an edible tropical fruit [n -GOES or -GOS]
MUNGO a low-quality wool [n -GOS or -GOES]
PINGO a low mound of earth formed by expansion of underlying frost [n -GOS or -GOES]

ERINGO {eryngo=n} [n -GOES or -GOS]
ERYNGO a medicinal herb [n -GOES or -GOS]
GINKGO an ornamental tree [n -GOES or -GOS]
INDIGO a blue dye [n -GOES or -GOS]
LATIGO a strap used to fasten a saddle [n -GOS or -GOES]
VIRAGO a noisy, domineering woman [n -GOES or -GOS]

SERPIGO a spreading skin eruption [n -GOS or -GOES or -GINES]
VERTIGO a disordered state in which the individual or his surroundings seem to whirl dizzily [n -GOES, -GOS, or -GINES]

FLAMINGO a wading bird [n -GOS or -GOES]

SUPERCARGO [n -GOS or -GOES]

ARCHIPELAGO [n -GOS or -GOES]

-GOES only:

DINGO a wild dog of Australia [n -GOES]
FORGO to refrain from [v -WENT, -GONE, -GOING, -GOES]
FUNGO a fly ball hit to a fielder for practice in baseball [n -GOES]
JINGO a zealous patriot [n -GOES] : JINGOISH [adj]
LINGO strange or incomprehensible language [n -GOES]
OUTGO to go beyond [v -WENT, -GONE, -GOING, -GOES]

FOREGO to go before [v -WENT, -GONE, -GOING, -GOES]

FARRAGO a confused mixture [n -GOES]
UNDERGO to be subjected to [v -WENT, -GONE, -GOING, -GOES]

* List compiled from OWL2 + Long List by Rebecca Slivka