some way or other, very, (kokuji)
迚 is a rare kokuji (Japan-made kanji) that expresses the idea of 'some way or other' or 'very'. Its meaning is tied to the Japanese word とても, and it does not have a clear standalone conceptual center beyond that adverbial sense.
迚 is a kokuji created in Japan, combining the movement radical ⻌ with 中 (middle). The exact historical reasoning is uncertain, but it likely uses 中 to represent the idea of 'in the middle of' or 'through', extended to the adverbial sense of 'somehow' or 'very'.
The movement radical ⻌ suggests a path, and 中 means middle. Imagine walking along a path and finding yourself in the middle of something, not knowing exactly how you got there—some way or other, you ended up very deep in it.
For とても, think of a 'toe' (と) that is 'very' (ても) sore after walking the path ⻌ to the middle 中. The toe is very sore: とても.