Which suffix refers to a condition of falling or drooping?

The suffix that refers to a condition of falling or drooping is indeed "-ptosis." This term is commonly used in medical contexts to describe a displacement or sagging of an organ or part of the body. For example, "blepharoptosis" refers to the drooping of an eyelid, illustrating how this suffix alters the meaning of the root word it is attached to. This suffix is derived from Greek, where "ptosis" means "falling."

In contrast, the other suffixes have different meanings. "-sepsis" pertains to infection or the presence of pathogenic organisms in the blood or other tissues. "-plegia" refers to paralysis or the loss of voluntary movement in a muscle or group of muscles. "-phagia" denotes eating or swallowing. Understanding the specific meanings of these suffixes helps in comprehending various medical terms and their implications.