rather
UK[ˈrɑːðə(r)]US[ˈræðər]
adv
used to mean ‘fairly’ or ‘to some degree’, often when you are expressing slight criticism, disappointment, or surprise
adv
used to show that you prefer to have or do one thing more than another
adv
used to correct something you have said, or to give more accurate information
adv
(British English, formal) used to agree with somebody or accept something
Etymology
The word 'rather' has a direct lineage from Old English 'hrathor', the comparative adverb of 'hræðe', meaning 'quickly, promptly'. This Old English term is related to the Proto-Germanic root hraþa-, meaning 'quick, swift'. The semantic journey from a literal sense of 'more quickly' to its modern adverbial meanings is a classic example of grammaticalization. The comparative sense of 'sooner' evolved into expressing preference ('sooner than another option'), and further softened into a degree modifier ('to some extent'), reflecting a shift from concrete speed to abstract comparison and mitigation.
Analysis
The word 'rather' is a simplex adverb. It derives from the Old English comparative form 'hrathor', meaning 'more quickly, sooner, more readily'. Its core components are not productively segmentable in modern English.
Examples
The movie was rather disappointing.
I'd rather have tea than coffee.
He worked till late, or rather, early this morning.