In a manner that shows expectation or anticipation; with a waiting or hopeful attitude.
From the present participle expecting plus -ly. This formation follows the pattern of words like 'accordingly' and 'ingly' adverbs, though it is quite rare in modern usage.
Some writers use 'expectingly' to create a more active sense than 'expectantly'—'he waited expectingly' suggests he's in the middle of the act of expecting, not just full of hope. It's subtle but poetic.
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