From what I got, he’s saying Jotun Modir, which has to do with Norse Mythology, much like the name “Odin” itself.

According to norse-mythology.net, “A Jotun is a giant [or giantess] with superhuman strength who lives in their the land of Jotunheim, which is one of the nine worlds in Norse mythology. Jotunheim is mostly made of rocks, mountains, wilderness and dense forests.” The first part of the description of Jotunheim seems to sound a lot like Odin’s surroundings right now.

From a quick google search, Modir seems to mean “Mother” in Nordic. Perhaps he’s referring to the statue of Ava as a giantess mother, which could be why he looks at it in awe.

Of course, I could be completely wrong and going delusional from lack of sleep.