fever
UK[ˈfiːvə]US[ˈfiːvər]
n
A medical condition in which the body temperature is higher than normal, often a sign of illness.
n
A state of nervous excitement or agitation.
Etymology
The word 'fever' entered English from Old English 'fēfor', a direct borrowing from the Latin 'febris', meaning 'fever'. Latin 'febris' is thought to be related to the verb 'fovere', meaning 'to warm, heat, or cherish', a semantic link that directly describes the primary symptom of the condition. This Latin root can be traced back to the Proto-Indo-European root dhegh-, meaning 'to burn' or 'to be hot', which also gave rise to words like 'day' (via the concept of the hot part of the day) and 'foment'. The journey from the ancient concept of burning heat to the specific modern medical and metaphorical meanings illustrates a clear and logical path of semantic specialization.
Analysis
The word 'fever' is a simplex word derived from Old English 'fēfor' or 'fēfer', which was borrowed from Latin 'febris'. It is not productively formed from smaller, recognizable morphemes in modern English.
Examples
The child stayed home from school with a high fever.
The crowd was in a fever of anticipation before the concert.
Hay fever causes sneezing and itchy eyes during pollen season.