*huzdą

Uncertain. Possibly from pre-Germanic *kudʰ-tó-m, with *-zd- perhaps arising from a special Germanic case of Bartholomae's law (but *-ss- is expected; cf. *(ga)wissiz < *wédʰtis), from Proto-Indo-European *kewdʰ- (‘to cover, conceal, hide’) (compare Ancient Greek κεύθω (keúthō) (keúthō, ‘to cover, hide’), Proto-Brythonic *kʉðɨd (‘to hide’) and Proto-Germanic *hūdijaną (‘to hide’)) + *-tóm, thus the original meaning would be “that which is concealed or hidden”.

Compare typologically Russian сокро́вище (sokróvišče) (< сокры́ть (sokrýtʹ), akin to скрыва́ть (skryvátʹ)).