coast
UK[kəʊst]US[koʊst]
n
the land beside or near to the sea or ocean
v
to move forward in a vehicle without using power, or to succeed without much effort
Etymology
the modern english word "coast" traces its lineage back to the latin "costa," which originally signified a "rib" or "side" of the body. this anatomical sense was metaphorically extended in late latin to denote the "side" of a landmass, particularly its edge or border. entering english via old french "coste," the term solidified its geographical meaning, referring specifically to the land that forms the boundary or "side" of a country next to the sea. this evolution from a concrete bodily part to an abstract geographical feature illustrates a classic path of semantic shift, where a word for a physical boundary is repurposed to describe a natural one.
Analysis
the word is a simplex form. it is derived from the latin noun "costa" meaning "rib, side, flank". its functional role in english is as a complete lexical root.
Examples
we drove along the pacific coast, admiring the dramatic cliffs.
the car ran out of gas, but we managed to coast downhill to the nearest station.
he coasted through his final year of school without opening a textbook.