↑ 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 靴下(kutsushita, “sock”) +留め(tome, “stopping”, the 連用形(ren'yōkei, “continuative or stem form”) of verb 留めるtomeru, "to stop"). The tome changes to dome as an instance of rendaku (連濁).