Early 17th century; earliest use found in Randle Cotgrave (fl. 1587–?1630), lexicographer. From judiciary + -ly, originally after French judiciairement.
Definition of judiciarily in US English:
judiciarily
adverbdʒʊˈdɪʃərɪli
rare
Judicially.
Origin
Early 17th century; earliest use found in Randle Cotgrave (fl. 1587–?1630), lexicographer. From judiciary + -ly, originally after French judiciairement.