Wiktionary
died off
vb. (en-pastdie off)
Usage examples of "died off".
Most mutations died off quickly, but the survivors are deadly to a universal degree.
As the initial funders had died off and the enthusiasm of the dedicated artsy money had waned and endowment had been sought in more down-to-earth quarters, the curricular emphasis had switched to other arenas.
The inhabitants had died off, but the village lived on, keeping itself clean of sand, able to provide refuge for any Martian who might come along.
She said nothing in reply, but the warnings died off quickly in rueful glances and smoothed skirts.