The Collaborative International Dictionary
Interlinearly
Interlineal \In`ter*lin"e*al\, Interlinear \In`ter*lin"e*ar\, a. Contained between lines; written or inserted between lines already written or printed; containing interlineations; as, an interlinear manuscript, translation, etc. -- In`ter*lin"e*ar*ly, adv.
Wiktionary
interlinearly
adv. 1 Between the lines (of a text). 2 With annotations between the lines.