how; what; in what way; used to ask about the manner of an action or the nature of a situation

used at the end of a sentence or phrase to ask for an opinion or suggestion, meaning 'how about it' or 'what do you think'

(literary) why; for what reason

(literary) to do something about a situation; used in rhetorical questions to express that nothing can be done

(mythology) a legendary tree mentioned in the Classic of Divine Wonders 神异经 shén​yì​jīng that grows in the southern wilderness