The Collaborative International Dictionary of English v.0.48:

Squire \Squire\, v. t. [imp. & p. p. squired (skw[imac]rd); p.
   pr. & vb. n. squiring.]
   1. To attend as a squire. --Chaucer.
      [1913 Webster]

   2. To attend as a beau, or gallant, for aid and protection;
      as, to squire a lady. [Colloq.] --Goldsmith.
      [1913 Webster]