[sub.side] vi sub.sid.ed ; sub.sid.ing [L subsidere, fr. sub- + sidere to sit down, sink; akin to L sedere to sit--more at sit] (1607) 1: to sink or fall to the bottom: settle
2: to tend downward: descend; esp: to flatten out so as to form a depression
3: to let oneself settle down: sink "subsided into a chair"
4: to become quiet or less "as the fever ~s" "my anger subsided" syn see abate -- sub.si.dence n