2 syllables:
bloody, buddi, buddie, buddy, chuddy, cruddy, cuddie, cuddy, duddie, duddy, fuddy, hchw a d, hla d, huddie, huddy, huldie, judie, luddy, muddie, muddy, nuddy, predy, puddy, rsta d, ruddy, scuddy, scudi, siddhi, spuddy, studie, study, the d, vda d

3 syllables:
beatbuddy, bebloody, brown study, case-study, gasbuddy, quick study, restudy, self-study, time study, unbloody, work-study, work study

4 syllables:
buddy-buddy, course of study, danny pudi, field of study, fuddy-duddy, motion study, nature study, overstudy, understudy

6 syllables:
literary study

8 syllables:
tuskegee syphilis study

3 syllables:
argosy, artfully, artlessly, burgundy, carefully, carelessly, carnegie, carpentry, certainly, certainty, cheerfully, cheerlessly, chirpily, circuitry, cordially, courtesy, cursedly, dirtily, dormancy, earnestly, earthnut pea, fearfully, fearlessly, fervency, fervently, fervidly, forcefully, forcibly, formally, fort-lamy, germany, gorgeously, harlotry, harmfully, harmlessly, harmony, heartily, jerkily, larceny, markedly, marquetry, mirthfully, nervelessly, nervily, normalcy, normally, normandie, normandy, partially, perfectly, perkily, personally, pharmacy, purposely, scornfully, servilely, smarmily, sordidly, stormily, tardily, thirstily, tirelessly, torpidly, urgency, urgently, verdancy, verdandi, wordily, wordlessly

4 syllables:
abnormalcy, absorbency, absurdity, advertency, advertently, basse-normandie, commercially, conformity, conservancy, convergency, conversancy, cryptorchidy, deformity, deservedly, detergency, determinedly, discordantly, discourtesy, disharmony, divergency, diversity, east germany, emergency, enormity, enormously, eternally, eternity, externally, fraternity, grand larceny, haute-normandie, hyperbole, importantly, infernally, informally, insurgency, internally, in harmony, maternally, modernity, mysteriously, observably, observantly, perversity, proportionally, remarkably, remorsefully, remorselessly, reportedly, transversally, uncertainly, uncertainty, white burgundy, with courtesy

5 syllables:
andrew carnegie, controversially, inadvertency, inadvertently, lower-normandy, most importantly, nonabsorbency, nonconformity, petit larceny, petty larceny, undeservedly, uniformity, universally, university, unremarkably, upper-normandy

6 syllables:
biodiversity, counterinsurgency, musical harmony, nonuniformity, uncontroversially, yale university

7 syllables:
cambridge university, city university, harvard university, oxford university, princeton university, stanford university

10 syllables:
federal republic of germany