comportamiento
/kompoɾtaˈmjento/ · B1 · noun · m
behavior
com + portar (to carry) + -miento: how you carry yourself
From comportar, to carry together, from Latin com- (with) + portare (to carry). Your comportamiento is the way you carry yourself, and English comport has the same root. The -miento ending turns the verb into a noun, like -ment in English.