Ne·ces·si·tate v. t. [imp. & p. p. Necessitated p. pr. & vb. n. Necessitating ]
1. To make necessary or indispensable; to render unavoidable.
Sickness [might] necessitate his removal from the court. --South.
This fact necessitates a second line. --J. Peile.
2. To reduce to the necessity of; to force; to compel.
The Marquis of Newcastle, being pressed on both sides, was necessitated to draw all his army into York. --Clarendon.