old documents / (in palaeography) historical documents written to convey a specific intention between a sender and receiver; generally inclusive of written material through the mid-19th century

paleography

to use / to employ / to make use of, to apply / to spend

to read (look at and interpret written text) / to read (speak aloud written text) / to infer; to speculate / to count

reading / (figuratively) understanding of something, speculation about something

spear

靖: a female given name

(colloquial) ます

安居: a surname / 安井: a surname

康胤: a male given name