Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

221. Interiority — N. interiority; inside, interior; interspace†,

subsoil, substratum; intrados. contents &c 190; substance, pith, marrow; backbone &c (center) 222; heart, bosom, breast; abdomen; vitals, viscera, entrails, bowels, belly, intestines, guts, chitterings†, womb, lap; penetralia [Lat.], recesses, innermost recesses; cave &c (concavity) 252. V. be inside &c adj.; within &c adv.. place within, keep within; inclose &c (circumscribe) 229; intern; imbed &c (insert) 300. Adj. interior, internal; inner, inside, inward, intraregarding†; inmost, innermost; deep seated, gut; intestine, intestinal; inland; subcutaneous; abdominal, coeliac, endomorphic [Physio.]; interstitial &c (interjacent) 228 [Obs.]; inwrought &c (intrinsic) 5; inclosed &c v.. home, domestic, indoor, intramural, vernacular; endemic. Adv. internally &c adj.; inwards, within, in, inly†; here in, there in, where in; ab intra, withinside†; in doors, within doors; at home, in the bosom of one's family.