deplete
verb /dɪˈpliːt/
  /dɪˈpliːt/
[transitive, usually passive, intransitive] (formal)Verb Forms
| present simple I / you / we / they deplete |  /dɪˈpliːt/  /dɪˈpliːt/ | 
| he / she / it depletes |  /dɪˈpliːts/  /dɪˈpliːts/ | 
| past simple depleted |  /dɪˈpliːtɪd/  /dɪˈpliːtɪd/ | 
| past participle depleted |  /dɪˈpliːtɪd/  /dɪˈpliːtɪd/ | 
| -ing form depleting |  /dɪˈpliːtɪŋ/  /dɪˈpliːtɪŋ/ | 
- deplete (something) to reduce something by a large amount so that there is not enough left; to be reduced by a large amount- Food supplies were severely depleted.
- Supplies are depleting fast.
 Extra Examples- Intensive fishing is depleting fish stocks in the North Sea.
- CFCs were widely used compounds which depleted the earth's ozone layer.
- Our cash reserves are being depleted at an alarming rate.
 Oxford Collocations Dictionaryadverb- seriously
- severely
- quickly
- …
 Word Originearly 19th cent.: from Latin deplet- ‘emptied out’, from the verb deplere, from de- (expressing reversal) + plere ‘fill’ (from plenus ‘full’).