מְרִירוּת

From LSJ

αὐτῇ τῇ ψυχῇ αὐτὴν τὴν ψυχὴν θεωροῦντα ἐξαίφνης ἀποθανόντος ἑκάστου → beholding with very soul the very soul of each immediately upon his death

Source

English (Strong)

from מָרַר; bitterness, i.e. (figuratively) grief: bitterness.