2 syllables:
-ancy, -mancy, ansae, anssi, can see, chancey, chance he, chancy, clancey, clancy, dancey, dancy, dansie, fancy, francy, ganci, gansey, glancy, hansi, lanci, mancy, man sie, nancee, nancey, nanci, nancy, sancy, schmancy, shansi, shan hsi, shan si, than see, yancey, yancy

3 syllables:
bolanci, couchancy, fiancee, hugh dancy, japan sea, nomancy, romancy, unchancy, wanchancy

4 syllables:
aeromancy, alomancy, armomancy, astromancy, athermancy, austromancy, belomancy, capnomancy, cartomancy, ceromancy, chartomancy, cheiromancy, chiromancy, chrestomanci, chronomancy, cleidomancy, cleromancy, cubomancy, gastromancy, geomancy, graptomancy, gyromancy, halomancy, hieromancy, hippomancy, hydromancy, ichnomancy, lithomancy, logomancy, myomancy, necromancy, nigromancie, nigromancy, oenomancy, oinomancy, onomancy, pedomancy, pessomancy, phyllomancy, psephomancy, psychomancy, pyromancy, rabdomancy, rhabdomancy, scatomancy, sciomancy, spheromancy, spodomancy, stichomancy, sycomancy, sycophancy, sycophantcy, technomancy, tephromancy, theomancy, tyromancy, uromancy, vacillancy, xylomancy

5 syllables:
ailuromancy, alectoromancy, aleuromancy, alphitomancy, ambulomancy, amniomancy, anthropomancy, arithmomancy, axinomancy, catoptromancy, cephalomancy, coscinomancy, dactylomancy, demonomancy, enoptromancy, idolomancy, lampadomancy, lecanomancy, libanomancy, maculomancy, metopomancy, molybdomancy, necyomancy, omphalomancy, oneiromancy, onychomancy, ophiomancy, ornithomancy, osteomancy, rhapsodomancy, scapulomancy, selenomancy, spasmatomancy, spatilomancy, spatulamancy, taliqua clancy

6 syllables:
alectryomancy, astragalomancy, ceraunomancy, dactyliomancy, margaritomancy, meteoromancy

3 syllables:
sneakily, decency, equally, peacefully, leniently, genially, legally, greedily, chieftaincy, threepenny, vis-a-vis, regency, secrecy, speedily, peaceably, evilly, dreamily, penally, recently, decently, easily, leniency, frequency, gleefully, ceaselessly, lemony, evenly, frequently

4 syllables:
unequally, deceitfully, unevenly, obesity, high frequency, indecency, infrequently, conveniently, facetiously, vehemently, obscenely, treacherously, low frequency, infrequency, conceivably, unspeakably, illegally, relevantly, uneasily, telegraphy

5 syllables:
obediently, unbelievably, adenopathy

6 syllables:
cardiomegaly, very high frequency, ovariectomy, very low frequency, relative frequency, audio frequency, medium frequency, radio frequency

7 syllables:
extremely low frequency, fundamental frequency, extremely high frequency, radiotelegraphy