Old terms in fiction that are weird to hear or read today.

I think this was supposed to make it clear who you were talking about in situations where there were several adult men in the same family. In a small town there could be two or three generations of Andrews men, possibly with many brothers and cousins in each generation, and just calling them all “Mr. Andrews” and their wives “Mrs. Andrews” could lead to confusion.

Michelle Dockery’s (Lady Mary Crawley) while historically accurate for Downton Abby’s time can be really distracting at times.

Condescend – now the word has a negative connotation, however it used to be used very positively.

From Dictionary.com
3. to put aside one’s dignity or superiority voluntarily and assume equality with one regarded as inferior: He condescended to their intellectual level in order to be understood.
4. Obsolete .
a. to yield.
b. to assent.

Word Origin & History

condescending

1707, from condescend. Originally in a positive sense (of God, the Savior, etc.) until late 18c. Related: Condescendingly (1650s).

I’m old and was raised by very old people (grandparents) When they refered to somone as weak eyed, they were usually refering to a child wearing glasses.
Intercourse= conversation.