otherwise
UK[ˈʌðəwaɪz]US[ˈʌðərwaɪz]
adv
in circumstances different from those present or considered; or else.
adv
in other respects; apart from that.
adj
in a different state or situation.
Etymology
the word 'otherwise' originated in old english as 'on oþre wisan', a phrase literally meaning 'in another manner'. the first element, 'oþre', is the dative form of 'oþer', meaning 'other'. the second element, 'wisan', is the dative form of 'wise', meaning 'manner' or 'way'. over time, through phonetic erosion and fusion, the phrase condensed into the single adverb 'otherwise'. this evolution from a literal phrase to a compact adverb illustrates a common grammaticalization process, where a descriptive construction becomes a fixed function word. its core logic remains transparent, connecting the concept of 'other' with 'manner' to express an alternative condition or differing circumstance.
Analysis
the word is a compound formed from two old english elements, but in modern english spelling, it is treated as a single, unsegmentable lexical unit.
Examples
we must hurry; otherwise we will miss the train.
the software is slightly outdated but otherwise perfectly functional.
he wished it were otherwise, but the decision was final.