Where does “hijita” come from?

hijita (Spanish) comes from Spanish hija, from Old Spanish fija, from Latin fīlia, from Latin fīlius, from Old Latin fīlios, from Proto-Indo-European dʰeh₁y-li-os, from Proto-Indo-European dʰeh₁(y)- — to suckle, nurse.

hijita (Spanish): Diminutive of hija: little daughter, daughterling