-bas-

(basement,basic,

bass)

-cap,capt-

(capture,capable)

-cred-

(credible,incredible)

-dict-

(predict,dictionary

dictator)

-duc,duct-

(induce,conduct

deduct)

-fac,fact-

(artifact,facsimile

faculty)

-graph-

(autograph,graphic

polygraph)

log

dialog,biology,

logic

mort

mortal,mortician

mortar

scrib,script

transcribe,subscribe

description

spec,spect

aspect,specimen

spectacles

tact

contact,tactile

intact

ten

tenacious,retentive

tension

therm

thermometer

thermosphere

heat

ver

verify,very