Strong’s Greek
G5447 — phusikos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
φυσικῶς
phusikos — pronounced foo-see-koce'
adverb from 5446; "physically", i.e. (by implication) instinctively:--naturally. see GREEK for 5446
1 occurrence in the KJV.
Jude 1:10
But these speak evil of those things which they know not: but what they know naturally, as brute beasts, in those things they corrupt themselves.