demote
verb [ T ]
uk/dɪˈməʊt/ us HR
to move someone to a less senior job than the one they had before:
demote sb from/to sth Her manager demoted her from her job as a supervisor.
demote sb for sth Sources said he was demoted for violation of departmental rules.
to move a company, team, etc. to a lower place in a list because it has performed badly:
demote sth from/to sth The company was demoted from the FTSE 1000 after its shares slumped 13p to 34p.
Compare
promote