TgJ 1Sam1:27 :וִיהַב יְיָ לִי יָת בָעוּתִי דִבעֵיתִי מִן קֳדָמוֹהִי‏ : the Lord gave me the supplication that I beseeched from him
See the entire entry for bāˁū, bāˁūṯā n.f. petition