c. 1600, perhaps from Dirk, the proper name, which was used in Scandinavian for "a picklock." But the earliest spellings were dork, durk (Johnson, 1755, seems to be responsible for the modern spelling), and the earliest association is with Highlanders, however there seems to be no such word in Gaelic, where the proper name is biodag. Another candidate is German dolch "dagger." The masc. given name is a variant of Derrick, ultimately from the Germanic compound in Dietrich.
1. Nancy wasn't sure if Dirk was making a pass at her.
2. Barry's speech followed Dirk Bogarde's appearance, and was an inevitable anticlimax.
3. Dirk's eyes flickered towards the pistol.
4. As soon as they were safely back to shore, Dirk raced for the nearest phone.
5. Viewers will remember the dashing hero, Dirk, risking life and limb to rescue Daphne from the dragons.