haustement means A close-fitting undergarment, over which the armor (and hose) were fastened. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
noun
- A close-fitting undergarment, over which the armor (and hose) were fastened.“The Haustement or Ajustement, […] was made to the shape and worn with the shirt […] The doublet and haustement of this period supplied the place of the wambais and hoqueton formerly worn . 2. The doublet must be streightly bounde . The first part of the dress being thus put on , it is to be closely bound round the ...”