• (adv.) Inwardly; within the enveloping surface, or the boundary of a thing; within the body; beneath the surface. • (adv.) Hence: Mentally; spiritually. Found on http://thinkexist.com/dictionary/meaning/internally/
In·ter'nal·ly adverb 1. Inwardly; within the enveloping surface, or the boundary of a thing; within the body; beneath the surface. 2. Hence: Mentally; spiritually. Jer. Taylor. Found on http://www.encyclo.co.uk/webster/I/81