fulge-o (fuls-), shine; fulmen, lightning: refulgent, fulminate.
fŭnd-o (fūs-), I pour; fū-tilis, vain: re-fund (= pay back), fusible, refuse, confuse, effusion, confound and foundry (Fr.), fount (of type), futile.
fund-us, bottom; fund-āre (fundāt-), to found: fundament = foundation (Fr.), pro-fundity; Fr., profound, (to) found, (to) founder, fund, refund.
fung-i (funct-), perform: de-funct, function (Fr.) perfunctory.
Gĕl-, gelid-us, icy cold; gĕl-āre (gelāt-), to congeal, glacies, ice: gelid, gelatine, glacier, glacial, jelly (Fr.).
gĕn- (birth)—gĕn-us (gĕnĕr-), (birth), race; gen-s (gent-), nation; gigno (genit-), give birth: general, generate, congener, gentle, gentile, congenital, ingenious, genius, gender (Fr.), ingenuous.
gĕr-o (gĕst-), bear: belli-gerent, gesture, di-gest, register and jest (Fr.).
grăd-i (gressus), to walk, go; grăd-us, a step: gradi-ent, gradation, e-gress, gradual, degrade, aggressive, degree (Fr.).
grandis, great: grand, grandee (Span.), grandeur (Fr.), grandiose.
gran-um, a grain: granule, granary, granite, ingrain, garner and grange.