↑ 1998, NHK日本語発音アクセント辞典 (NHK Japanese Pronunciation Accent Dictionary) (in Japanese), Tōkyō: NHK, ISBN 978-4-14-011112-3
Etymology
Compound of 鶯(uguisu, “Japanese bush warbler”) +張り(hari, “stretching”, the 連用形(ren'yōkei, “continuative or stem form”) of verb 張るharu, "to stretch"), from the way that the floor creaks upon pressure. The hari changes to bari as an instance of rendaku (連濁).
