TgO Gen18:14 :הֲיִתכַסַא מִן קדם יוי פִתגָמָא‏ : is the matter concealed from the Lord?
See the entire entry for ksy vb. to conceal

TgO Gen18:14 :הֲיִתכַסַא מִן קדם יוי פִתגָמָא‏ : could the matter be hidden from the Lord?
See the entire entry for men qŭḏām prep./conj from before, in front of