amalgamate vs conjoin

amalgamate

verb
  • To merge, to combine, to blend, to join. 

  • To combine (free groups) by identifying respective isomorphic subgroups. 

  • To make an alloy of a metal and mercury. 

adj
  • Coalesced; united; combined. 

conjoin

verb
  • To join together; to unite; to combine. 

  • To combine two sets, conditions, or expressions by a logical AND; to intersect. 

  • To marry. 

  • To unite, to join, to league. 

  • To join as coordinate elements, often with a coordinating conjunction, such as coordinate clauses. 

noun
  • A reassembled bone, stone or ceramic artifact. 

  • One of the words or phrases that are coordinated by a conjunction. 

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