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Webster 1913 Edition
Impallid
Im-pal′lid
,Verb.
 T.
 To make pallid; to blanch. 
[Obs.] 
Feltham.
 Webster 1828 Edition
Impallid
IMPAL'LID
,Verb.
T.
  Definition 2025
impallid
impallid
English
Verb
impallid (third-person singular simple present impallids, present participle impalliding, simple past and past participle impallided)
-  (obsolete, transitive) To make pallid; to blanch.
- (Can we find and add a quotation of Feltham to this entry?)