sub-dŭbĭto

I. to be a little doubtful or undecided, to have some hesitation (Ciceron.): antea subdubitabam, Cic. Att. 14, 15, 2: significabant tuae litterae, te subdubitare, quā essem erga illum voluntate, id. Fam. 2, 13, 2.