新说文解字：细说英语词根词源词汇表

event convenient conventional convention convene contravene circumvent avenue adventurous adventitious advent venturous venturesome venture extravaganza extravagant divagate vague vagrant vagrancy vagarious vagary vagabond pervasive pervasion invasive invasion evasive evasion waddle wade pervade invade evade remote promotion promote locomotive emotional emotion demote commotion motorize motor motivate motive motion automobile demobilize mobilize mobility mobile mobster mobocracy mob removable remove movie movable movement move transmute permutation permute immutable commutable commute mutual mutinous mutiny mutate mutability mutable transmigration transmigrate immigrant immigrate emigrate migrant migratory migrate seditious sedition itinerary itinerant transitory transition transit initial initiative initiate circuitous circuit bandit ambitious ambition exit transgression transgress retrogress regression progressive progress ingress egress digression digress congress aggressive aggression aggress ingredient centigrade downgrade upgrade undergraduate retrograde postgraduate degrading degrade graduation graduate gradual gradation gradient grade transportation transport support sport purport passport opportune opportunity importance import export disport deportment deportation deport comport portfolio porter portage portable portico portal port porch fertilizer fertilize fertility fertile transferable transfer suffering sufferable suffer soniferous referendum referee reference refer proffer preferential prefer offering offer odoriferous inferential inferable infer indifferent floriferous efferent differentiate difference different differ deferment deferential deference defer conferment conference confer circumference aquiferous afferent ferry welfare warfare thoroughfare farewell fare inerrancy aberration aberrance aberrant erratic errant erroneous error err successive succession success secessionism secession recession recess procession process intercession incessant excessive excess concession ancestor accessory accessible access cession cessation succeed secede retrocede recede procedure proceeds proceed preceding precedent precede intercede exceeding exceed concede antecedent accede cede courier scour recourse intercourse discourse courser concourse course