yearnful
Filled with yearning; desirous; mournful; distressing.
So now lend me thy yearnful tunes to utter my sorrow.
Where it comes from
From Middle English yernful, ȝeornful, from Old English ġearnfull, ġeornful (“desirous, eager, zealous, diligent, anxious”), equivalent to yearn + -ful.
Adapted from the Wiktionary entry yearnful (CC BY-SA 4.0).