Definition of lather

The origin of the word "lather" can be traced back to the Old English word "hlæter," which was used to describe the foam or suds created when soap or another cleaning agent was added to water. This word is derived from the Proto-Germanic "*khlaitwr," which had the same meaning. The phrase "lather up" refers to the process of creating a thick foam or foamy substance through the use of soap, shampoo, or another detergent. The term "to lather" initially meant "to create foam" and was commonly applied to the processes of making soap or washing clothes. However, over time, it came to be associated specifically with the process of creating a foamy substance on one's skin or in a washbasin for purposes of cleansing. The original meaning of "lather" likely derives from the fact that the foam created by soap and water resembles the frothy head that forms on beer or ale when it is poured. The words "lather" and "ale" share a common ancestry in the Old English words "hlæter" and "hleðer," indicating their close relationship in terms of historical development. Today, "lather" is a commonly used verb in American English, and "foamy" substances created through the action of a soap or detergent are often described as being "lathered up." While originally applied to the processes of soap-making and laundry washing, the term "lather" has come to take on a secondary meaning as a synonym for enthusiasm, particularly in the context of sports. In this way, "to lather on" is a common term used by athletes and coaches to describe the state of being highly motivated or excited.