Quintus

Example:While Quintus was a leader among his peers, his lastborn sibling was still learning the ropes.

Definition:A youngest son or daughter among siblings, emphasizing the lowest rank compared to a firstborn.

Example:As the minor character, Quintus played a supporting role in the play.

Definition:Signifying secondary or of lesser importance or status compared to a primary or principal figure, similar to Quintus in another cultural context.