meld vs weld together

meld

verb
  • to combine multiple similar objects into one. 

  • In card games, especially of the rummy family, to announce or display a combination of cards. 

noun
  • A combination of cards which is melded. 

weld together

verb
  • Used other than figuratively or idiomatically: see weld, together. 

  • To forge a social or emotional bond between people. 

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