-tor, -sor, -or, -our, -er, -eer, -ier, -ar, -ary; doctor, successor, chancellor, emperor, actor, Saviour, founder, enchanter, governor, preacher, juror, author, monitor, victor, auditor, sponsor, engineer, auctioneer, grenadier, brigadier, registrar, usher, archer, farrier, vicar, premier, lapidary.
-trix, female agent; executrix.
2. Those forming Abstract Nouns:
-age; age, homage, savage, marriage, voyage, tillage, courage, personage, breakage, salvage. (Tonnage, bondage, shrinkage are hybrids.)
-ance, -ancy, -ence, -ency; distance, constancy, infancy, consistence, resistance, decency, consistency, persistence, conveyance, cadence, chance (a form of cadence).
-ice, -ise; avarice, service, merchandise, justice, exercise.
-ion, -tion, -sion, -som, -son, originally denoted the action of a verb; action, potion, opinion, poison, venison, malison, fusion, reason, tension, lection, ransom, season, position, nation, occasion.
-or, -our; labour, honour, ardour, savour, clamour, amour.
-tude; servitude, latitude, fortitude, altitude, longitude, magnitude, custom (from consuetudo).
-ty, -ity; cruelty, charity, bounty, poverty, fealty, city, vanity.