'balladise' originates from Modern English, built from the noun 'ballad' + the verb-forming suffix '-ise' (equivalent to US '-ize').

'ballad' itself comes from Old French 'ballade' and from Late Latin 'ballata' (a dancing song), ultimately from Latin 'ballare' meaning 'to dance'; the verb form 'balladise' therefore arose in English by adding '-ise/-ize' to 'ballad' to mean 'make into a ballad'.

Initially related to songs or dances ('a dancing song'), the root developed into 'ballad' meaning a narrative song or simple lyric; 'balladise' evolved to mean 'to make into a ballad' and, by extension, 'to present in a sentimental or romanticized ballad-like way.'