TgO Gen18:5 :וְאִסַב פִתָא דְלַחמָא וֻסעוּדוּ לִבְכוֹן‏ :
See the entire entry for sˁd vb. to help, to aid

TgO Gen18:5 :וֻסעוּדוּ לִבְכוֹן בָתַר כֵין תִעבְרוּן‏ : eat to your heart’s content and then go on your way
See the entire entry for ˁbr vb. to cross over