| corroborate(verb, support, maintain, back, declare) |
| cosign(verb, support, maintain, back, declare) |
| countersign |
| cross heart(verb, expression, agree, declare, commit) |
| demand(verb, hold, press, maintain, approve) |
| depend on(verb, expression, assert, undertake, affirm) |
| earnest(noun, agreement, contract, assurance, compact) |
| ensure(verb, agree, declare, approve, uphold) |
| espousal(noun, agreement, contract, assurance, compact) |
| espouse(verb, agree, declare, contract, commit) |
| express the belief(expression, idiom) |
| extrajudicial oath |
| fast |
| forward |
| gage(noun, agreement, contract, assurance, promise) |
| get behind(verb, expression, support, maintain, back) |
| give |
| give alms(expression, idiom, worship) |
| give an affidavit(verb, expression, idiom, support, maintain) |
| give assurance(verb, expression, support, maintain, back) |