Japanese edit

For pronunciation and definitions of ひたたれ – see the following entry.
直垂
[noun] (clothing) a two-piece set of clothing worn in some form since the early Heian period, consisting of a long-sleeved robe tucked into hakama trousers, where the robe opening in front is tied closed with a cord, and the sleeves each have a drawstring at the opening to cinch them up as needed
(This term, ひたたれ, is the hiragana spelling of the above term.)