In the same way or manner; also or similarly. It indicates that what follows corresponds to or parallels what has been previously mentioned.
A compound of 'like' and 'wise' (meaning 'way' or 'manner'), formed in Middle English around the 15th century. Originally written as 'like wise', it gradually became a single word, evolving from the literal meaning 'in a like manner' to its current use as a sophisticated synonym for 'also' or 'similarly'.
Likewise is wonderfully economical - it packs the meaning of 'in the same way' and 'also' into a single elegant word. What's charming is how it maintains a slightly formal, almost courtly tone that makes even simple agreements sound more dignified, which is why it's survived centuries of linguistic evolution.
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