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Webster 1913 Edition

adv.

In an abstracted manner; separately; with absence of mind.

adv.

In a separate state, or in contemplation only.

abstractedly ‎(comparative more abstractedly, superlative most abstractedly)

In an abstracted manner; separately; with absence of mind. [First attested in the mid 17^th century.]^[1]

in an abstracted manner

↑ Lesley Brown (editor), The Shorter Oxford English Dictionary, 5th edition (Oxford University Press, 2003 [1933], ISBN 978-0-19-860575-7), page 10