godan ~る verb / transitive:

• to do; to undertake; to perform; to play (a game); to study - colloquialism ➜ 為る【する】
• to send; to dispatch; to despatch
• to put; to move; to turn (one's head, glance, etc.)
• to give (esp. to someone of equal or lower status); to let have; to present; to bestow; to confer
• to make (a vehicle) go faster
• to run (a business); to keep; to be engaged in; to practice (law, medicine, etc.); to practise
• to have (food, drink, etc.); to eat; to drink; to smoke
• to hold (a performance); to perform; to show ➜ 演る
• to ease (one's mind)
• to harm; to injure; to kill - colloquialism ➜ 殺る
• to have sex with - slang ➜ 犯る

godan ~る verb / intransitive verb:

• to live; to get by; to get along ➜ やって行く・やって来る

suffix / godan ~る verb:

• to do ... completely - after the -masu stem of a verb, often in the negative
• to do ... broadly; to do ... to a great distance - after the -masu stem of a verb

auxiliary verb / godan ~る verb:

• to do ... for (someone of equal or lower status); to do ... to (sometimes with negative nuance) - after the -te form of a verb
• to make active efforts to ... - after the -te form of a verb

expression:

• sufficiently motivated (to do something)

noun:

• willingness (e.g. to do something); eagerness; motivation; inspiration; determination; high aspirations

adjective:

• helpless; cheerless; miserable; disconsolate; dreary; downhearted

expression / adjective:

• unable to clear away one's ill feeling; not able to do anything (about...)