פּירוש אויף איכה 1:13

“From above He sent a fire” [1:13]. He sent a fire from heaven into my bones and has broken them. He spread a net under my feet. He has left me devastated and my whole day is woe.

Crushing it. It [the fire] crushed it and broke it through punishment and suffering. Therefore, the ‘nun’ is punctuated with a ‘dagesh’, so that it is interpreted in the feminine singular, as in יַעֲשֶׂנָּה [=he will do it], יְכַרְסְמֶנָּה [=he will gnaw at it], יִרְעֶנָּה [=will graze upon it]; for עֶצֶם [=bone] is in the feminine gender, as [Scripture] states, “the dry bones [=הָעֲצָמוֹת הַיְבֵשׁוֹת.”⁴⁶Yechezkeil 37:4. It broke each one. Another explanation, וַיִּרְדֶּנָּה as in, “and he separated it into his hands.”⁴⁷Shoftim 14:9. He emptied the marrow, [i.e.,] he scraped and separated the marrow from within it.⁴⁸Alternatively, ‘and sent it [i.e., fire] down.’