(literary) they (about women or girls)

causative of 合う (au) / put together / tune music, radio / add up to, amount to / match with / check with, check against / adapt oneself to, join in / blend, mix / combine, fuse, merge

altogether

in addition, besides

joining together

arrival at a location / (archaic) the wearing of clothing / (archaic) a kimono / (archaic, possibly obsolete) in the area around Edo, short for 巾着切り (kinchaku kiri, “a cutpurse”)

(literary) they (about women or girls)

twist (threads) together, intertwine

check against, compare

meet / appear together, costar / compete together in a game or match, face off