I file her lore more into the cosmology side of things, since her main role is the mythology is the birthing of Thor and after that she's hardly mentioned (afaik). Thor, thunderer, was born from this marriage of the earth and Odin (whatever he represents in full - maybe in this case knowledge, death, the sky). Going a step further Thor is married to wheat. So we have wheat married to the thunderstorm. Makes sense so far. And thunderstorm the child of earth and... Wotan. When I think of these things, I'm fairly certain that cosmology aspects of the lore are probably older than adventuring stories of the Gods -- Utgardaloki, thrymskvida, the mead of poetry, etc. These latter tend to have more storytelling and more humor - probably appealing to a different audience. The cosmology strikes me as having deeper roots, and more connected with the PIE folklore than the more colorful anectdotes of the gods' adventures. Because of this, I think Odin here is a more abstract version of Odin/Wotan, and his congress with Jord could also be symbolic of the meeting of the 'world' -- our experience of things through perception and thought -- and 'earth' -- things as they are. This is a hot take, and I reserve the right to change my mind later.