ISEE/SSAT Vocabulary Builder›Word parts›Prefixes›endo/ind
PrefixGreek
endo/ind
inside, within
Greek endon meant within: an endoskeleton supports from inside, endogenous forces arise within, and endothermic reactions take heat in.
Words built from it
- endoskeleton — an internal skeletal support structure
endo- (within) + skeleton (bony frame) - endothermic — absorbing heat from its surroundings
endo- (within) + therm (heat) - endogenous — originating from within
endo- (within) + gen (produced) - endorphin — a natural pain-relieving chemical produced within the body
endo- (within) + orphin (from morphine)
Looks like it, but is not
- tendon — from Greek tenon 'sinew,' related to 'stretch,' not endo- 'within'
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