weary (adj.)
Old English werig "tired, exhausted; miserable, sad," related to worian "to wander, totter," from Proto-Germanic *worigaz (source also of Old Saxon worig "weary," Old High German wuorag "intoxicated"), of unknown origin.
weary (v.)
Old English wergian "to be or become tired" (intransitive), gewergian "to exhaust, to make tired" (transitive), from the source of weary (adj.). Related: Wearied; wearying.