Complex sentence: The common version of Æthelthryth's name was St. Awdrey, which is the origin of the word "tawdry", which derived from the fact that her admirers bought modestly concealing lace goods at an annual fair held in her name in Ely.
Split into simpler sentences: The common version of Æthelthryth's name was St. Awdrey, which is the origin of the word "tawdry". Her admirers bought modestly concealing lace goods at an annual fair held in her name in Ely.