Classical Japanese form of 言う (iu)

(archaic, obsolete) to use, make use of, utilize / (archaic, obsolete) to adopt / (archaic, obsolete) to employ / (archaic, obsolete) to need

Kyūjitai form of 応用: application

Kyūjitai form of 応用: to apply

practical use; utility

tool, instrument, implement, device

the exclusive use, dedicated, being only for, specifically for

did you want something? can I help you? what do you want? did you need me?

(obsolete, historical) Rare archaic alternative spelling of 用いる (mochiiru), historical 用ゐる (mochiwiru): to use

having served one's purpose