Probably a variation for Yshanah; Ashnah, the name of two places in Palestine -- Ashnah.
see HEBREW Yshanah
H823. Ashnah
אַשְׁנָה proper name, of a location (the firm ?) name of two cities in Judah.
1 Joshua 15:33.
2 Joshua 15:43.
אֶשְׁנָב see שׁנב.
אֶשְׁעָן see שׁען.