somehow

We don't know how he's still alive after the accident, but somehow he is.

Although youngest of the family, he has somehow or other got the entire management of all the others.

1817, Sir Walter Scott, Rob Roy

Have I not loathed to live again and said It would have been far better to be dead, And yet somehow, I know not why, Remained afraid to die!

1895, William Dean Howells, Mortality

Carried somehow, somewhither, for some reason, on these surging floods, were these travelers, of errand not wholly obvious to their fellows, yet of such sort as to call into query alike the nature of their errand and their own relations.

1910, Emerson Hough, chapter II, in The Purchase Price: Or The Cause of Compromise, Indianapolis, Ind.: The Bobbs-Merrill Company, →OCLC

“The morphology of the fossil teeth also suggests that this human lineage represents a dwarfed descendant of early Homo erectus that somehow got marooned on the island of Flores,” Yousuke Kaifu, from Tokyo’s National Museum of Nature and Science, said in a statement.

2016 June 9, James Griffiths, “This is how the ‘Hobbits’ of Indonesia became so small”, in CNN, archived from the original on 11 Apr 2021