fog
UK[fɒɡ]US[fɑːɡ]
n
A thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface which obscures visibility.
n
A state or cause of perplexity or confusion.
v
To cover or become covered with or as if with fog.
v
To make something confusing or less clear.
Etymology
The word 'fog' is believed to have entered English in the mid-16th century, likely borrowed from the Scandinavian languages, such as Danish 'fog' meaning "spray, shower" or Old Norse 'fok' meaning "spray of any kind, snowdrift." Its origin is distinct from the more general term 'mist'. The semantic journey moved from a concept of driving spray or snowstorm to the specific meteorological phenomenon of a thick, obscuring cloud near the ground. This evolution reflects a narrowing and specialization of meaning, capturing the dense, enveloping nature that later extended metaphorically to states of mental confusion or obscurity.
Analysis
The word 'fog' is a simplex word of Scandinavian origin (likely Old Norse). It does not contain separable, meaningful morphemes within its modern English spelling.
Examples
Dense fog forced the cancellation of all morning flights.
The complicated instructions left me in a complete fog.
The steam from the shower began to fog up the bathroom mirror.