support or hold steady and make steadfast, with or as if with a brace "brace your elbows while working on the potter's wheel" bracesteadystabilizestabilise
prepare (oneself) for something unpleasant or difficult bracepoise
noun
a carpenter's tool having a crank handle for turning and a socket to hold a bit for boring bracebitstock
a structural member used to stiffen a framework bracebracing