Where does “dzieusyna” come from?

dzieusyna (Polish) comes from Polish dziewucha, from Polish -ucha, from Old Polish -ucha, from Old Polish -ą, from Proto-Slavic -a, from Proto-Indo-European -ōd.

Ancestry of “dzieusyna”, step by step

Step	Language	Word	Meaning
1	Polish	dziewucha	country girl, wench
2	Polish	-ucha	forms nouns, usually augmentative in nature; may be of either gender, though typically feminine
3	Old Polish	-ucha	forms nouns
4	Old Polish	-ą	forms third person plural of verbs
5	Proto-Slavic	-a	id
6	Proto-Indo-European	-ōd	—

Every word from Proto-Indo-European -ōd →Every word from Proto-Slavic -a →Every word from Polish -ucha →