coassist

verb

1. To jointly assist or to provide an additional source of assistance.

   “When, by means of this Plaister, (or some other of equal Virtues, Properties, and Power) coassisted with the Internals above-directed, the Lividness, Hardness, and Sponginess of the circumambient Flesh are resolv'd, reprov'd, and dissipated, and the Flesh restor'd to its natural Colour and Condition; it will then be time to introduce cicatrizing, healing Medicines:And over such, (in place of the above-describ'd) the followin Plaister may be very good, as it is warm and defensive:”

   “Now, the reason that a falling body moves faster at the end than at the beginning of the fall is that "since it is accelerated in the beginning, it acquires such an impetus and this impetus coassists in producting motion.”

   “It is a very modern technique coassisted by optical microscopy, which enables one to choose surface structures without specimen sampling, on very limited areas.”