wistful
wist·ful
adjective
1.
Origin
Presumably from *whistful, from whist (“silent”) + -ful, based on older wistly. It is implausible that it derives from wishful, the required sound change being wishful → *wisful → wistful, which could not occur in Modern English, particularly not with wishful continuing in use. However, the sense of “longing” appears to be influenced by wishful, making wistful an ambiguous poetic word.
Related words
Word family
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.