sustain

[1]	uphold , prolong , keep up , support , keep up , maintain , continue , keep (someone/something) going , keep alive , preserve , prolong , persist in
[2]	support , suffer , have , carry , bear , get , bolster , buoy (up) , reinforce , keep (someone) going , strengthen , shore up , underpin , prop up , buttress
[3]	endure , nourish , nurture , stand , withstand , bear up under , put up with , suffer , undergo , experience , tolerate , weather , brave
[4]	bear , keep , maintain , carry , support
[5]	uphold , hold , support , recognize , allow , hold up , admit , approve , ratify , sanction , authorize , endorse , validate
[6]	confirm , corroborate , substantiate , support , affirm