ail
UK[eɪl]US[eɪl]
v
To cause pain or trouble to someone; to be ill
v
To be unwell or in poor health
Etymology
The word 'ail' originates from the Old English verb 'eglian', which meant 'to trouble, afflict, or be ill'. This Old English term is itself derived from the adjective 'egle', meaning 'troublesome, grievous'. The root can be traced further back to Proto-Germanic 'aglijaz', conveying a sense of harm or trouble. The semantic core of causing distress or affliction has remained remarkably consistent from its ancient Germanic origins to its modern usage, primarily in literary or formal contexts to describe physical or mental suffering.
Analysis
This is a simplex word of Old English origin. The modern form 'ail' is a direct continuation of the Old English verb 'eglian', meaning 'to trouble, afflict, or be ill'. It functions as a single, indivisible lexical unit.
Examples
What ails you today?
The doctor could not determine what ailed the patient.
A sense of melancholy ailed him throughout the winter.