2 syllables:
-stasis, basis, casis, chasis, clasis, crasis, glacis, jaysus, lacis, mesas, nacis, rhacis, stasis, tahsis, tasis

3 syllables:
aclasis, airbases, cash basis, diaplasis, diectasis, ecbasis, ecphrasis, ectasis, ekphrasis, horasis, oasis, oasys, renesas, subspaces, systasis

4 syllables:
anabasis, anaclasis, anastasis, antiphrasis, antistasis, biostasis, blennostasis, catabasis, cataclasis, cholestasis, chronostasis, coprostasis, cryostasis, cytoclasis, cytostasis, diaclasis, epistasis, gastrectasis, haemostasis, hemostasis, holophrasis, homostasis, hypostasis, hypostasise, katabasis, leukostasis, lymphostasis, metabasis, metaplasis, myotasis, neurectasis, parabasis, periphrasis, peristasis, sarcobasis, thromboclasis, typhlectasis, venostasis

5 syllables:
accrual basis, antanaclasis, atelectasis, bronchiectasis, enterectasis, homeostasis, karyoclasis, laryngostasis, onychoclasis, osteoclasis, ptyalectasis, pyelectasis, sialectasis

6 syllables:
antiperistasis, arteriectasis, bacteriostasis, blepharochalasis, dermatochalasis, homoeostasis, lymphangiectasis, telangiectasis

7 syllables:
electrohemostasis, on a regular basis, pyeloureterectasis

8 syllables:
on an irregular basis

9 syllables:
on an individual basis

2 syllables:
maleness, aphis, davis, dreyfus, dreyfuss, gracious, spacious

3 syllables:
abidance, anthesis, adamance, agamous, camelus, fatuous, tantalus, scandalous, anoestrus, fractiousness, antabuse, ravenous, passionless, thalamus, astacus, flatulence, crapulous, handleless, calculus, ampleness, annulus, ambulance, abacus, averageness, tactlessness, acinous, bashfulness, hatefulness, balanus, thankfulness, blasphemous, fabulous, assonance, cannabis, gratefulness, accidents, accidence, abstinence, acanthus, handedness, fathomless, sanguineness, caducous, callousness, randomness, platanus, class-conscious, angelus, handsomeness, ancestress, crapulence, araceous, audacious, bodacious, ceraceous, chartaceous, chylaceous, curvaceous, edacious, fallacious, flirtatious, fugacious, loquacious, mendacious, predaceous, predacious, rosaceous, sagacious, salacious, sebaceous, tenacious, ungracious, veracious, vexatious, vinaceous, vivacious, voracious

4 syllables:
analysis, unanimous, miraculous, magnanimous, ambassadress, gelatinous, paralysis, iapetus, savageness, astragalus, recalcitrance, anachronous, dialysis, extravagance, capacitance, affableness, analogous, calamitous, intransigence, manageress, ungratefulness, substantialness, incandescence, alliaceous, amentaceous, amylaceous, arboraceous, arenaceous, argillaceous, carbonaceous, coriaceous, disputatious, efficacious, farinaceous, foliaceous, ostentatious, perspicacious, rhadamnathus, saponaceous

5 syllables:
pusillanimous, oleaginous, cartilaginous, renal calculus, cost analysis, inefficacious, unostentatious

6 syllables:
systems analysis, integral calculus, psychoanalysis, flaccid paralysis, predicate calculus, functional calculus, hemodialysis

7 syllables:
infantile paralysis, harmonic analysis, regression analysis, urinary calculus, differential calculus

8 syllables:
qualitative analysis, gravimetric analysis, quantitative analysis

9 syllables:
infinitesimal calculus