The Chinese word 任由 is a compound formed by combining two synonymous characters, 任 (rèn), meaning "to let" or "to allow," and 由 (yóu), meaning "to follow from" or "to be up to." This structure, known as a coordinate compound, merges two independent morphemes with closely related meanings to create a single, reinforced concept. Together, 任 and 由 emphasize a sense of complete permission or a passive allowance, producing a word that means "to let (someone do as they please)" or "to leave (something) to," often carrying a connotation of indifference or a lack of intervention, as in allowing events to unfold without restriction or guidance.