Wistful

Wistful (Wist"ful) (?), a.
[For wishful; perhaps influenced by wistly, which is probably corrupted from OE. wisly certainly (from Icel. viss certain, akin to E. wit). See Wish.]

1. Longing; wishful; desirous. "Lifting up one of my sashes, I cast many a wistful, melancholy look towards the sea." Swift.