† pregravitatev.

1673 R. Boyle Hydrostatical Let. 13 Feb. in Tracts written by Hon. Robert Boyle 155 Our..included portion of water does really press the subjacent water, though it does not actually depress it, or (as perhaps a school-man would phrase it) does gravitate on it, but not pregravitate.

1686 R. Boyle Free Enq. Notion Nature vi. 189 Water does gravitate in Water, as well as out of it, though indeed it does not prægravitate, because 'tis Counter-ballanc'd by an equal weight of Collateral Water, which keeps it from descending.

1722 J. Quincy Lexicon Physico-medicum (ed. 2) 187/1 Those things which do not pre-gravitate in the Air, Water, &c. the Vulgar take to have no Gravity.

1731 T. Knight Vindic. Late Ess. Transmutation Blood 230 A corroding Menstruum, whose Particles by the Corpuscles of the Metal's attractive Force run into their metalline Embraces and thereby are suspended: Otherwise would pregravitate or descend.