דִּכֵּןdikkên

this, that, only Daniel (Daniel 2:31; Daniel 7:20; Daniel 7:21)

Pronunciation: dik-kane' · Hebrew/Aramaic (Old Testament) · H1797

Same root

דֵּךְdêk · H1791this

Where it appears

Appears 3 times in the Bible.

Daniel 2:31 “In your vision, Your Majesty, you saw standing before you a huge, shining statue of a man. It was a frightening sight.
Daniel 7:20 I also asked about the ten horns on the fourth beast’s head and the little horn that came up afterward and destroyed three of the other horns. This horn had seemed greater than the others, and it had human eyes and a mouth that was boasting arrogantly.
Daniel 7:21 As I watched, this horn was waging war against God’s holy people and was defeating them,

Source: Brown, Driver and Briggs, Hebrew and English Lexicon of the Old Testament (1906), public domain; markup by unfoldingWord, CC BY (github.com/unfoldingWord/Brown-Driver-Briggs-Enhanced).