overlock vs serge

overlock

noun
  • A stitch that sews over the edge of one or two pieces of cloth for edging, hemming or seaming. 

verb
  • To stitch in this manner. 

  • To make the bolt of a lock go too far. 

serge

noun
  • A garment made of this fabric. 

  • A type of worsted cloth. 

  • A large wax candle used in some church ceremonies. 

verb
  • To overlock. 

How often have the words overlock and serge occurred in a corpus of books? (source: Google Ngram Viewer )