rupt-

interrupt, disrupt, erupt

scrib-, script

describe, inscribe, scribble

sect-

bisect, dissect, section

socio-

social, antisocial, sociopath

spec-, spect-, spic-

spectator, conspicuous, perspective

strain, strict, string

constrict, strained, stringy

struct-

construct, instruct, structure

tact-

contact, tactile, tactics

ten, tain

contain, tendency, tenant

ter, terra-, geo-

geode, geography, territory

therm-

thermometer, thermostat, thermosphere

tort-

distort, contortionist, torture

tract-

tractor, distract, contract

ven-

vendor, convention, revenge

ver-

verify, verbal, verdict

vers-, vert-

invert, converse, vertbrate

vid-, vit-

visible, video, provide, evidence

viv-, vit-

vivid, vivacious, vivify