old documents / (in palaeography) historical documents written to convey a specific intention between a sender and receiver; generally inclusive of written material through the mid-19th century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

the form of a character that belongs to a system, such as "Old", "New", "Simplified", "Traditional", etc.; this concerns the major, systematic differences, such as which radicals to be used, or stroke counts; compare 字形 (jikei)

the past / ancient times

(not of a person) old, aged, antiquated

old

Kyūjitai form of 関

a surname

use one thing for many purposes / work someone hard