SUR assure assured assurance assuring ensure insure insurable insurance insurant insurer reassure reassurance reassuring reinsure reinsurance

　　SURGE/SURRECT surge insurgency insurgent insurrection resurge resurgence resurgent resurrect resurrection source resource

　　TAC/TIC tacit taciturn taciturnity reticence reticent

　　TAIL tailor tailoring detail detailed entail retail retailer

　　TECHN technical technicality technically technique technocracy technocrat technological technologist technology

　　TECT detect detectaphone detection detective protect protection protectionism protective protector protégée tegument

　　TEMPT/TENT tempt temptation tempter tempting temptress attempt attempted tentative tentacle

　　TEST testament testamentary testate testator testatrix testify testimony testimonial attest attestation attester contest contestant contestation detest detestable protest protestant protestation

　　THES/THET hypothetical thesis antithesis antithetic hypothesis hypothesize hypothetic parenthesis parenthesize synthesis synthesize synthetic

　　TIM timid timidity timorous intimidate intimidation intimidator

　　TON tone tonal tonality atonal atonality diatonic intone intonation monotone monotonous monotony semitone undertone

　　TOUR tourism tourist tournament attorney contour detour

　　TOX toxic toxicant toxicity toxicology toxicologist toxin antitoxic antitoxin detoxify intoxicate intoxicant intoxicated intoxication

　　TRIBUT tribute tributary attribute attribution attributive contribute contribution contributor distribute distribution retribution retributive

　　TROP tropic tropical tropism heliotrope heliotropism hydrotropism subtropical subtropics

　　TRUD/TRUS abstruse detrude extrude extrusion extrusive intrude intruder intrusion intrusive obtrude obtrusion obtrusive obtrusiveness protrude protrusion

　　TUM tumefaction tumescent tumescence tumid tumor contumacious contumacy contumely

　　ULTIM ultimate ultimately ultimatum ultimo penultimate antepenultimate

　　URB urban urbane urbanism urbanite urbanity urbanize urbanization conurbation exurb exurban exurbia interurban suburb suburban suburbanite suburbia