Learn how to say Foetid correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word fetid:
smelling extremely unpleasant:
the fetid water of the marsh
late Middle English: from Latin fetidus (often erroneously spelled foetidus), from fetere ‘to stink’. Compare with fetor
Fetid can also be spelled foetid, with an o before the e: both are correct, although fetid is more common.