To "get off the ground" means to make an idea or business start. You use it in this way: We are trying to get our research project off the ground, but first we need a few more lab assistants and one more key piece of software.

"Get off ground" is not a proverb. It might be, "Get off the ground" which is an idiom (I think!). If someone says they wish something would "get off the ground", it means to gain success. Imagine being the first person to invent an aeroplane, (en.wikipedia.org/wiki/Wright_brothers) and you hoped that when it was moving quickly, that it would, "get off the ground". That's the meaning, you hope something will be successful. I hope that helps.

"Get off the ground" is a term used when starting something new and maybe difficult like starting a business or a new project. Also, it can be used if something has low interest and you're looking to "get off the ground" or "out of a rut" by employing new ideas i.e. (in example) We need to get this project off the ground. OR Getting a website would really get my business off the ground.

There is no proverb "get off ground"! There is a saying: "Get it off the ground."