A / antĭthĕsis
noun greek

antĭthĕsis

gen. antĭthĕsis · gender feminine · decl. 3rd
= ἀντίθεσις, a gram. ng.
the putting of one letter for another
the putting of one letter for another (e. g. olli for illi, impete for impetu), Charis. p. 249 P.; Diom. p. 437 P.