| submit oneself(verb, expression, idiom, agree, offer) |
| tackle(verb, help, attack, accept, start) |
| take on(verb, expression, accept, start, join) |
| take upon oneself(verb, expression, idiom, accept, start) |
| try(verb, advance, accept, start, challenge) |
| try out(expression, advance, accept, start, challenge) |
| underling(noun, servant) |
| unprompted(natural, spontaneous, voluntary) |
| unrequited |
| willing(free, charitable, independent, spontaneous, unpaid) |
| worker(noun, servant) |
| enrol |
| willful(adjective, free, deliberate, natural, willing) |
| accord(verb, give, present, allow, extend) |
| act(verb, endeavor) |
| address oneself(verb, expression, accept, start, try) |
| adduce(verb, yield, urge, submit, request) |
| admit(verb, join, gather, enter, engage) |
| advise(verb, give, present, yield, tender) |
| affirm(verb, present, yield, tender, urge) |