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Webster 1913 Edition

adv.

In a wondering manner.

wonderingly ‎(comparative more wonderingly, superlative most wonderingly)

In a wondering manner; with wonderment.
- 2006, Fank L. Baum, The Complete Book of Oz, Wilder Publications, page 443
  "That will be sat-is-fac-tor-y," said Tik-Tok, picking up the gun and examining it wonderingly, for he had never before seen such a weapon.

in a wondering manner