Meaning of the Sanskrit Word: yajet

  yajet—must worship    SB 2.3.2-7, SB 2.3.8
  yajet—should worship    SB 2.3.9
  yajet—may worship    SB 3.29.10
  yajet—one should worship the Supreme Personality of Godhead.    SB 7.14.16

Can't find any compound Sanskrit words containing yajet.