Definition of thereto adverb from the Oxford Advanced Learner's Dictionary

 

thereto

 adverb
adverb
BrE BrE//ˌðeəˈtuː//
 
; NAmE NAmE//ˌðerˈtuː//
 
(law or formal)
 
jump to other results
to the thing mentioned The lease entitles the holder to use the buildings and any land attached thereto.
See the Oxford Advanced American Dictionary entry: thereto