submergence
Concise Oxford English Dictionary © 2008 Oxford University Press:
submerge/səbˈmɜːʤ/
▶verb
- 1 cause to be under water.
■ descend below the surface of water.
- 2 completely cover or obscure.
– derivatives
submergence noun,
submergible adjective.
submergence noun,
submergible adjective.
– origin C17: from L. submergere, from sub- ‘under’ + mergere ‘to dip’.
'submergence' also found in these Oxford entries:

