allo vs sentimental

allo

adj
  • Allosexual and/or alloromantic; experiencing sexual and/or romantic attraction. 

noun
  • One who is allosexual and/or alloromantic. 

sentimental

adj
  • Romantic. 

  • Characterized by sentiment, sentimentality or excess emotion. 

  • Derived from emotion rather than reason; of or caused by sentiment. 

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