On Wiktionary, ''intitle:dasher'' finds ''dasher'' but not ''haberdashery'' (since it's part of a longer word there). The regex ''intitle:/.*dasher.*/'' also fails to find ''haberdashery''. How can I find partial words within a title?
Topic on Help talk:CirrusSearch
Use the grep utility https://tools.wmflabs.org/grep/
It's possible only for the endings of words. Intitle does stemming, fuzzy, and wildcards on the ends of the partial word you give. Nothing affect a search towards the beginning parts except regex, but intitle doesn't have regex. Only insource has regex, and it doesn't search titles.