Cap-a-pie

from WordNet (r) 3.0 (2006)

cap-a-pie
    adv 1: at all points from head to foot; "he was armed cap-a-pie"
           [syn: {cap-a-pie}, {from head to toe}]

from The Collaborative International Dictionary of English v.0.48

Capapie \Cap`*a*pie"\, adv. [OF. (?) cap-a-pie, from head to
   foot, now de pied en cap from foot to head; L. pes foot +
   caput head.]
   From head to foot; at all points. "He was armed cap-a-pie."
   --Prescott.
   [1913 Webster]