Definify.com
Webster 1913 Edition
Overtop
Oˊver-top′
,Verb.
 T.
 [
imp. & p. p. 
Overtopped
; p. pr. & vb. n. 
Overtopping
.] 1. 
To rise above the top of; to exceed in height; to tower above. 
“To o’ertop old Pelion.” Shak.
 2. 
To go beyond; to transcend; to transgress. 
If kings presume to 
overtop 
the law by which they reign, . . . they are by law to be reduced into order. Milton.
3. 
To make of less importance, or throw into the background, by superior excellence; to dwarf; to obscure. 
Becon.
 Webster 1828 Edition
Overtop
OVERTOP'
, v.t.1.
  To rise above the top.2.
  To excel; to surpass.3.
  To obscure; to make of less importance by superior excellence.Definition 2025
overtop
overtop
English
Verb
overtop (third-person singular simple present overtops, present participle overtopping, simple past and past participle overtopped)
-  (transitive) To be higher than; to rise over the top of.
-  1955, William Golding, The Inheritors, Faber and Faber 2005, p. 79:
- There was a single birch tree that overtopped the other trees on the island, and was now picked out against the moon-drenched sky.
 
 -  2009 February 20, Robert F. Service, “MATERIALS SCIENCE: Is Silicon's Reign Nearing Its End?”, in Science, volume 323, number 5917, DOI:, pages 1000-1002:
- […] try to switch one off and current still leaks through, like water overtopping a levee.
 
 
 -  1955, William Golding, The Inheritors, Faber and Faber 2005, p. 79:
 -  (transitive) To place too many toppings on.
- to overtop a pizza