וְכֵ֨ן יַעֲשֶׂ֜ה שָׁנָ֣ה בְשָׁנָ֗ה מִדֵּ֤י עֲלֹתָהּ֙ בְּבֵ֣ית יְהוָ֔ה כֵּ֖ן תַּכְעִסֶ֑נָּה וַתִּבְכֶּ֖ה וְלֹ֥א תֹאכַֽל׃
Demikianlah dilakukannya dari tahun ke tahun. Setiap kali Hana pergi ke rumah Yang Mahakekal, demikian pula madunya menyakiti hatinya, sehingga ia menangis dan tidak mau makan.
Rabbeinu Bahya
Rabbi Saadyah Gaon explains the word שדי as meaning that He makes up any shortfall, i.e. supplies די, adequacy. Yet another explanation offered for this word relates it to Isaiah 66,23 מדי חדש בחדשו, ”from month month.” It means that something is constant, repeats itself endlessly. The name Shaddai then describes G’d’s eternal nature.
Rashi
My tears were my bread From here we derive that distress satiates a person, and he does not seek to eat. Similarly, Scripture states regarding Hannah (I Sam. 1:7): “and she wept and did not eat.”
Radak
Eating (Achlah): It is the infinitive with the addition of a hey; but the hey is not for the feminine, as it is not dotted (mapik). And likewise, drinking (shatah) is the infinitive. So its explanation is that they ate and they drank. But it is possible that Channah also ate. Even though it stated (I Shmuel 1:7), "and she wept and would not eat," it is possible that after her husband said to her, "But why don't you eat," and pleaded with her, she ate a little. And a master of homiletical teachings said (Ketuvot 65a), "'He drank (shatah),' but she did not drink (shatatah). But he was not exact.