making one appear younger than one is

truth; reality; sincerity / fidelity; faith / kindness / substance; essence / (mathematics) dividend

by far / continuing for a long time; long-lasting; forever; always; for the entire time

a master; an expert

(formal) Female third-person singular pronoun; she, her, girlfriend

(colloquial) a girlfriend (a female partner in a romantic relationship)

(formal) someone's age

(literary) they (about women or girls)

young / if

"my lord" (towards a young master or a young heir)