¹ sn This is a derogatory name for the Mount of Olives, involving a wordplay between מָשְׁחָה (mashÿkhah), “anointing,” and מַשְׁחִית (mashÿkhit), “destruction.” See HALOT 644 s.v. מַשְׁחִית and M. Cogan and H. Tadmor, II Kings (AB), 289.

¹ sn It is not altogether clear whether this is in the same year that Jerusalem fell or not. The wall was breached in the fourth month (= early July; Jer 39:2) and Nebuzaradan came and burned the palace, the temple, and many of the houses and tore down the wall in the fifth month (= early August; Jer 52:12). That would have left time between the fifth month and the seventh month (October) to gather in the harvest of grapes, dates and figs, and olives (Jer 40:12). However, many commentators feel that too much activity takes place in too short a time for this to have been in the same year and posit that it happened the following year or even five years later when a further deportation took place, possibly in retaliation for the murder of Gedaliah and the Babylonian garrison at Mizpah (Jer 52:30). The assassination of Gedaliah had momentous consequences and was commemorated in one of the post exilic fast days lamenting the fall of Jerusalem (Zech 8:19).