Definitions for "Split infinitive"
A simple infinitive with to, having a modifier between the verb and the to; as in, to largely decrease. Called also cleft infinitive.
The often awkward separation of an infinitive by at least one adverb: to quietly go. See infinitive.
a construction in which a word is placed between to and the base verb: e.g., to completely finish.
Keywords:  fault, minor
a minor fault