evening star vs evetime

evening star

noun
  • An evening primrose (Oenothera biennis). 

  • Any star seen in the evening, especially the planets Mercury and Jupiter. 

  • Mentzelia pumila (dwarf mentzelia) and other species of genus Mentzelia. 

  • The planet Venus as seen in the western sky in the evening. 

evetime

noun
  • evening; eventide 

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