Definition of prop up

The phrase "prop up" has its origins in the mid-1500s, during the era of wooden scaffolding used in construction. In this context, the verb "prop" meant to support something with vertical poles or boards, commonly known as propping, in order to keep it from falling or collapsing. One common usage of this construction term was seen in temporarystructures utilized to hoist workers up high during building processes. The expression "prop up" then evolved to mean providing temporary support, and by the late 1800s, it began to be used more widely as a figurative expression to describe mentally or physically supporting someone in need. The verb "to up" simply means to lift or raise something, thereby reinforcing the metaphorical meaning that someone or something is being propped to a higher or more stable position, indicating assistance and support. In short, the phrase "prop up" originated from the construction context of utilizing vertical poles or boards as supports to maintain structures, and it has since evolved to signify a broader meaning of providing temporary assistance or help to someone in need.