Lewis Short
(adverb) : mĕdullĭtus, medulla
* In the marrow, to the very marrow, in the inmost part (ante- and post-class.).
* Lit.: medullitus aquiloniam intus servat frigedinem, Varr. ap. Non. 139, 9.
* Trop., inwardly, from the heart, thoroughly: qui mortalibus Versus propinas flammeos medullitus, Enn. ap. Non. 33, 7, and 139, 14 (Sat. v. 7 Vahl.): ut videas eam medullitus me amare,heartily, in one's inmost soul,Plaut. Most. 1, 3, 86: ostendit sese jam mihi medullitus,id. Truc. 2, 4, 85: gemens,Amm. 14, 1, 9: dolore commotus,App. M. 10, p. 251.
Charlton T. Lewis, Charles Short, A Latin Dictionary