From WordNet (r) 3.0 (2006) [wn]:
atop
adv 1: on, to, or at the top
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Atop \A*top"\, adv.
On or at the top. --Milton.
[1913 Webster] Atrabilarian
From WordNet (r) 3.0 (2006) [wn]:
atop
adv 1: on, to, or at the top
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Atop \A*top"\, adv.
On or at the top. --Milton.
[1913 Webster] Atrabilarian