In an interview when asked about her stage name, Lorde replied saying:
“When I was trying to come up with a stage name, I thought ‘Lord’ was super rad, but really masculine—ever since I was a little kid, I have been really into royals and aristocracy. So to make Lord more feminine, I just put an ‘e’ on the end! Some people think it’s religious, but it’s not.”Most likely due to her interest of royalty, it is often mentioned in her songs.
Royals - Focused on royalty, this song firsthand shows her interest - or the nonsense - of the title subject.
400 Lux - The "lux" in the title most likely refers to a term of measurement, or it could be a shortened version of "luxury", usually acquainted with royalty.
Team - "Look upon Your Greatness and she'll send the call out" The lyric "Your Greatness" is most likely a reference to a queen or empress, a form of royalty.
Sober - "King and queen of the weekend" is a direct reference to royalty.
(more coming soon)