Darkle

Dar'kle intransitive verb [ Freq. of dark .] To grow dark; to show indistinctly. Thackeray.
Found on http://www.encyclo.co.uk/webster/D/6

Darkle

• (v. i.) To grow dark; to show indistinctly.
Found on http://thinkexist.com/dictionary/meaning/darkle/

darkle

to grow or make dark
Found on http://phrontistery.info/d.html
No exact match found