(ANTONYM)ENDO & EXO

NOUN
ENDOCRINE        EXOCRINE
ENDOGAMY         EXOGAMY
ENDOGENY         EXOGENY
ENDOGENESIS      EXOGENESIS
ENDOSKELETON     EXOSKELETON

ADJECTIVE
ENDOGAMIC        EXOGAMIC
ENDOGAMOUS       EXDOGAMOUS
ENDOGENOUS       EXDOGENOUS
ENDOTHERMIC      EXOTHERMIC

ADVERB
ENDOGENOUSLY     EXOGENOUSLY