3 syllables:
-genesis, genesis, venosus

4 syllables:
adenosis, agenesis, agennesis, digenesis, dysgenesis, eugenesis, noogenesis, oogenesis, pangenesis, parenesis, regenesis, syngenesis, transgenesis

5 syllables:
aerogenesis, amphigenesis, anagenesis, androgenesis, autogenesis, biligenesis, biogenesis, blastogenesis, book of genesis, cacogenesis, caenogenesis, cainogenesis, catagenesis, cenogenesis, chondrogenesis, cladogenesis, clastogenesis, cosmogenesis, cyclogenesis, cytogenesis, diagenesis, diplogenesis, ectogenesis, endogenesis, epigenesis, erogenesis, ethnogenesis, exogenesis, fibrogenesis, frontogenesis, gamogenesis, glucogenesis, glycogenesis, gynogenesis, haemogenesis, hemogenesis, henogenesis, histogenesis, homogenesis, hylogenesis, hypergenesis, hypnogenesis, hypogenesis, isogenesis, kainogenesis, kenogenesis, ketogenesis, lactogenesis, lipogenesis, lithogenesis, lymphadenosis, lysogenesis, merogenesis, metagenesis, microgenesys, mitogenesis, monogenesis, morphogenesis, mutagenesis, myogenesis, mythogenesis, neogenesis, neurogenesis, noegenesis, nosogenesis, oncogenesis, ontogenesis, orogenesis, orthogenesis, ovigenesis, paedogenesis, palingenesis, paragenesis, pathogenesis, pedogenesis, perigenesis, petrogenesis, phenogenesis, phylogenesis, phytogenesis, polygenesis, psychogenesis, pyogenesis, schismogenesis, schizogenesis, sega genesis, sporogenesis, taphrogenesis, thermogenesis, virogenesis, xenogenesis, zygogenesis, zymogenesis

6 syllables:
abiogenesis, abiogenisis, achondrogenesis, adipogenesis, agamogenesis, amelogenesis, amniogenesis, amylogenesis, anthropogenesis, atherogenesis, baryogenesis, bibliogenesis, carcinogenesis, cardiogenesis, cariogenesis, cementogenesis, crystallogenesis, cyanogenesis, dentinogenesis, dynamogenesis, electrogenesis, embryogenesis, epeirogenesis, fibrillogenesis, gametogenesis, geneagenesis, gluconogenesis, haematogenesis, hematogenesis, heterogenesis, iatrogenesis, idiogenesis, immunogenesis, karyogenesis, kinetogenesis, leukemogenesis, library genesis, melanogenesis, methanogenesis, myelogenesis, neuranagenesis, odontogenesis, organogenesis, osteogenesis, parthenogenesis, pyretogenesis, salutogenesis, sociogenesis, spermatogenesis, spermiogenesis, steroidogenesis, symbiogenesis, synaptogenesis, teratogenesis, tornadogenesis, tumorigenesis, tumourigenesis, vasculogenesis, vitellogenesis

7 syllables:
anticyclogenesis, folliculogenesis, gluconeogenesis, glyconeogenesis, leucocytogenesis, megasporogenesis, microsporogenesis, myelinogenesis, photomorphogenesis

8 syllables:
anti-angiogenesis, antiangiogenesis, etiopathogenesis, glyceroneogenesis

3 syllables:
presidents, remissness, reticence, headmistress, sketchiness, pemphigus, oedipus, wretchedness, negligence, penitence, evilness, preciseness, fleshiness, pettishness, lemniscus, pensiveness, restiveness, residence, delphinus, selfishness, greensickness, dehiscence, hesitance, mellifluous, president's, residents, temptingness

4 syllables:
retentiveness, receptiveness, objectiveness, impenitence, preexistence, successiveness, nonresistance, perceptiveness, protectiveness, aggressiveness, oppressiveness, expressiveness, contentedness, unselfishness, deceptiveness, progressiveness, impressiveness, excessiveness, directionless, expensiveness, offensiveness, connectedness, defectiveness, attentiveness, intensiveness, feverishness, effectiveness, inventiveness, affectedness, dementedness, eptesicus, expectedness, inclementness, necessitous, obsessiveness, possessiveness, reflexiveness, subjectiveness, unpleasingness

5 syllables:
comprehensiveness, ineffectiveness, apprehensiveness, unexpectedness, disconnectedness, discontentedness, inattentiveness, inexpensiveness, introspectiveness, student residence, unaffectedness, unconnectedness, unperceptiveness, unprotectedness

6 syllables:
counterintelligence, interconnectedness, religious residence