1.  to harden;  to freeze;  to strengthen;  to solidify;  to make (a fist);  to tramp down (snow, dirt)
2.  to put together;  to collect;  to gather;  to consolidate
3.  to make secure;  to stabilize;  to settle down;  to strengthen (belief, resolution, etc.);  to establish (evidence)
4.  to fortify;  to reinforce;  to support
5.  to wear for a specific purpose (armor, coat, etc.)
in the form に身をかためる
6.  to swear;  to resolutely vow;  to sincerely promise
7.  to tie tightly;  to fasten
8.  to hold a bow fully drawn