The word 耗尽 is a compound verb formed through the combination of two characters: 耗 (hào), which means "to consume", "to use up", or "to waste", and 尽 (jìn), which means "to exhaust", "to finish", or "to the utmost". In this structure, the first character 耗 describes the action of gradual depletion, while the second character 尽 intensifies and completes the meaning by indicating a total or final state of exhaustion. Together, they create a single, cohesive concept meaning "to use up completely", "to deplete", or "to exhaust", following a common pattern in Chinese where two synonymous or semantically related characters are combined to reinforce and specify the meaning of the resulting word.