All 5 Uses

subside
in
Anna Karenina
(Auto-generated)

The prince apparently had plenty more to say, but as soon as the princess heard his tone she subsided at once, and became penitent, as she always did on serious occasions.†
Part 2

subsided = became less intense, less severe, or less active -- perhaps went away entirely
The scream had subsided, but there was some change now.†
Part 7
At last, after despairing, breathless screaming, and vain sucking, things went right, and mother and child felt simultaneously soothed, and both subsided into calm.†
Part 8 *
The colonel, thinking it all over, made up his mind not to pursue the matter further, but then for his own satisfaction proceeded to cross-examine Vronsky about his interview; and it was a long while before he could restrain his laughter, as Vronsky described how the government clerk, after subsiding for a while, would suddenly flare up again, as he recalled the details, and how Vronsky, at the last half word of conciliation, skillfully maneuvered a retreat, shoving Petritsky out before him.†
Part 2
And as soon as these words were uttered, both he and she felt that it was over, that what was to have been said would not be said; and their emotion, which had up to then been continually growing more intense, began to subside.†
Part 6

Definitions:

(1) (subside as in: her anger subsided)
become less intense, less severe, or less active -- perhaps going away entirely
(2) (subside as in: the ground subsided)
sink or settle to a lower level
(3) (meaning too rare to warrant focus)
In classic literature, subside may be used as a synonym for sit as in "She subsided into the chair."