| verb | flow off gradually “The rain water drains into this big vat” |
| verb | deplete of resources “The exercise class drains me of energy” |
| verb | empty of liquid; drain the liquid from “We drained the oil tank” |
| verb | make weak “Life in the camp drained him” |
| adjective | emptied or exhausted of (as by drawing off e.g. water or other liquid) “a drained marsh” |
| adjective | very tired |
| adjective | drained of electric charge; discharged “a dead battery” |
| drainage | noun | emptying something accomplished by allowing liquid to run out of it |
| drain | noun | a pipe through which liquid is carried away |
| enfeeblement | noun | serious weakening and loss of energy |
| debilitative | adjective | causing debilitation |
| debility | noun | the state of being weak in health or body (especially from old age) |
| debilitation | noun | serious weakening and loss of energy |
| deadness | noun | the inanimate property of something that has died |