redecussate

verb

1. To decussate again; to cross back.“If Ferrier's recent contradition of Brown-Séquard's theorem stands, then we are in the same quandary as before with regard to the alternative stated by Wernicke, that if the sensory paths all decussate in the oblongata, they must redecussate twice in the cord, if the facts of capsular and spinal hemianæsthesia are to be harmonized.”