Possible Misspellings:
* Lycett: This is a surname and also a place name in England.
* Lucetuff: This could be a misspelling of "lucet", an obsolete word for "shining" or "bright".
* Light tuff: This could be a term used in geology to describe a light-colored rock.
Could you please provide more context?
* What is the sentence or phrase where you encountered this word?
* What is the topic or subject matter?
With more information, I may be able to help you determine the intended meaning of the word.