cog
UK[kɒɡ]US[kɑːɡ]
n
One of a series of teeth on the edge of a wheel or gear that transfers motion by engaging with another toothed part.
n
A subordinate but essential person in an organization or process.
Etymology
The word 'cog' emerged in Middle English around the 13th century, likely borrowed from a Scandinavian source such as Old Norse 'kugg', meaning a cog or a peg. Its ultimate origin is uncertain but is thought to be connected to the Proto-Germanic root kugg- or kugjō-, which may have imitative origins related to the shape or the act of gripping. The term originally referred to a tooth on a wheel, with its mechanical sense solidifying during the medieval period alongside advancements in mill and clockwork technology. The figurative sense of an essential but minor individual within a larger system developed in the early 20th century, extending the mechanical metaphor to human roles in organizations.
Analysis
The word 'cog' is a simplex word of Germanic origin. It functions as a single, unanalyzable morpheme in modern English.
Examples
A broken cog brought the entire machine to a halt.
He felt like a small cog in a vast corporate machine.
The gears interlocked perfectly, each cog turning the next.