Answer: infinitive

AnswerCrossword Clue
INFINITIVEIt's usually better not to split one
INFINITIVEPart 2 of quote
INFINITIVEVictim of a split decision?
INFINITIVETo have or to hold.
infinitiveThe basic form of a verb, without an inflection binding it to a particular subject or tense (e.g., see in we came to see, let him see)
infinitiveexpressing the verbal idea without reference to person, number or time / the infinitive mood; a verb in the infinitive mood