mappelet

מַפֶּלֶת is a feminine noun of the maqtal type formed on the root נפל, one of a small set of derived nouns from that root (נֵפֶל, מַפָּל, מַפָּלָה/מַפֵּלָה, מַפֶּלֶת) which the lexica keep formally and semantically distinct. BDB divides the entry in two: "carcass" (Judges 14:8, and of a felled tree at Ezekiel 31:13) and "overthrow, ruin, downfall" (Ezekiel 26:15, 18; 27:27; 31:16; 32:10; Proverbs 29:16). HALOT and DCH (vol. 5) partition the same eight occurrences along the same line, so the sense inventory is not itself in question; Seebass in TDOT treats the nominal derivatives as straightforward specializations of the verb's concrete range rather than as independent lexemes.

The one classificatory question of substance is Ezekiel 31:13, where the birds of heaven dwell עַל מַפַּלְתּוֹ. The phrase may denote the prostrate trunk itself (hence renderings like "fallen trunk" or "ruin") or the felling as an event, and modern commentary on the chapter reads the line within the dirge's larger movement of the cosmic tree brought down to Sheol, so that the birds which once nested in its branches now settle on it where it lies. Either construal yields the same referent on the ground, which is why the lexica do not treat it as a separate sense.

The distribution is itself the striking datum: six of the eight instances are in Ezekiel, five of those in the oracles against Tyre and Egypt, where the noun functions as a keyword of the qinah (lament) form, collocating with the fixed temporal formula בְּיוֹם ("in the day of") at Ezekiel 26:18, 27:27, and 32:10, and with מִקּוֹל ("at the sound of") at 26:15 and 31:16. Proverbs 29:16 supplies the wisdom counterpart of the prophetic usage, the righteous outlasting the regime whose collapse they live to witness.