FULIGINOUS

go if in is li lo no nu of oi on os si so un us

fig fil fin flu fog fon fou fug fun gin gnu gos gul gun ifs ins ion lin lis log lug nil nog nos nus oil ons sin sol son sou sun ulu uns

figs filo fils fino fins flog flus fogs foil foin fons foul fugs fugu funs gins gnus golf gulf guls guns iglu info ions ling lino lins lion logs loin long lugs lung nils nisi nogs noil nous oils onus sign silo sing slog slug snog snug soil soli song soul sulu sung ulus