Writing Saturday: X is for … Trying to find an X word

X is the start of very few words, even when it sounds like it sound be. Sometimes writing can seem as hard and as difficult as finding a word that starts with the letter X. But keep at it, you will break through and your book will be worth all the work you put into it.
Many people want to write a book, but few succeed in ever finishing their story because they’re not prepared to write, even when it’s hard.
What do you do when you hit an extra hard spot in your writing?