phrasal
1.
a. : to bring a companionship, association, or similar connection between two parties (as individuals, groups, or organizations) to an end
a faint diverging path was reached, where they parted company — Thomas Hardy
held the federal union together … when the states might easily have parted company — C.A.Herter
b. : to effect such a separation from someone or something — used with with
parted legal company with his former boss … and has hired his own lawyer — Ted Princiotto
2.
a. : to diverge from someone or something (as in opinion, policy, or common purpose) — used with with
the Republican Senate leadership parted company with the President on this issue — Arthur Krock
and sometimes with from
here … parts company from most of the scholars — Times Literary Supplement
b. : to diverge in such a way from each other
on the tariff question the two philosophies parted company