lactate vs sip

lactate

verb
  • To secrete or produce milk 

noun
  • Any salt or ester of lactic acid 

sip

verb
  • To taste the liquor of; to drink out of. 

  • To drink slowly, small mouthfuls at a time. 

  • To drink a small quantity. 

  • To consume slowly. 

noun
  • A small mouthful of drink 

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