v. (UN-2 + 3 + TEEM v.1] trans. To unburden, discharge.

1

1635.  [Glapthorne], Lady Mother, III. i. Lest the full clouds … unteeme their big wombd laps And raise a sudden deluge.

2

1683.  in J. Russell, Haigs (1881), 314. It seems to me that Europe is unteaming herself to plant these Western parts of the world.

3