overburden
verb /ˌəʊvəˈbɜːdn/
  /ˌəʊvərˈbɜːrdn/
[usually passive]Verb Forms
| present simple I / you / we / they overburden |  /ˌəʊvəˈbɜːdn/  /ˌəʊvərˈbɜːrdn/ | 
| he / she / it overburdens |  /ˌəʊvəˈbɜːdnz/  /ˌəʊvərˈbɜːrdnz/ | 
| past simple overburdened |  /ˌəʊvəˈbɜːdnd/  /ˌəʊvərˈbɜːrdnd/ | 
| past participle overburdened |  /ˌəʊvəˈbɜːdnd/  /ˌəʊvərˈbɜːrdnd/ | 
| -ing form overburdening |  /ˌəʊvəˈbɜːdnɪŋ/  /ˌəʊvərˈbɜːrdnɪŋ/ | 
- overburden somebody/something (with something) to give somebody/something more work, worry, etc. than they can deal with- He did not appear to be overburdened with guilt.