from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. Mentally supply (something which has not been expressed); scilicet.
- adv. By or relying upon mental suppletion.
- adj. Mentally supplied.
From the Latin subaudī, the second-person singular present active imperative form of subaudiō ("I understand”, “I supply a word"), from sub ("under") + audiō ("I hear”, “I listen"). (Wiktionary)