出典:Wiktionary
Originally 17th century. Apparently a special use of the forename Nick, perhaps in jocular or contrastive reference to Saint Nicholas. Alternatively, it may be derived from nicker, or some other derivative of 古期英語 nicor (“water demon”).[1]
a pen name that has been used for a long time
おい[ねえ]君.
古風の
古代ふうの
old friendships
a thing that has become old
古めかしいさま