rickety

The word 'rickety' emerged in the late 17th century, directly derived from the disease name 'rickets'. Rickets, a condition causing softening and deformity of the bones in children, provides the core semantic link. The adjective-forming suffix '-y' was appended to create a descriptive term. Initially, 'rickety' literally described someone suffering from or resembling the physical weakness and instability caused by rickets. Through metaphorical extension, this sense of inherent weakness and instability was applied to inanimate objects, such as furniture or structures, that are poorly constructed and shaky, leading to its dominant modern meaning.

Structure: ricket (disease) + y (adjective suffix) The morpheme 'ricket' originates from the English word 'rickets', the name of a bone disease, itself of uncertain origin (possibly from a dialectal word). The morpheme 'y' is an Old English adjectival suffix used to form adjectives meaning "characterized by" or "full of".