A person who sets snares and lies in wait for prey. Derived from the word "fowl", common prey for trappers in old times. The word also gained popularity in the years of Early Modern English (Shakespheare, the King James version of the Bible) as a symbolic term for a person who maliciously uses deception to ensnare or trap others.
Surely, HE will deliver thee from the snare of the fowler, and from the noisome pestilence.
Now that fowler is defined, you are probably wondering what "noisome" means. To be continued.