Feminine of pachad; alarm (i.e. Awe) -- fear.
see HEBREW pachad
H6345. pachdah
[מַּחְדָּה] noun feminine dread, religious awe, suffix אֵלַיִךְ מַּחְדָּתִי לֹא Jeremiah 2:19 no awe of me (came) unto thee.