In a manner that involves criticism; with a critical attitude or tone.
From criticise plus -ing (present participle) plus -ly (adverb ending). Stacks three grammatical elements to transform a verb into a manner adverb.
Adverbs like this show English's incredible flexibility: one short verb root 'critic' can become criticise, criticising, criticisingly—each form modifying different parts of speech as it goes.
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