問屋

/tohiya/: [topiya] > [toɸiya] > [towiya] > [toiya]. The adverbial of 問ふ (tohu, “ask”) /tohi/ and 屋 (ya, “store”).

問屋(といや) • (toiya) ^{←とひや (tofya)?}

1. a place for merchants to sleep
   • 1597: Ekirin Setsuyōshū (page 39)

     問屋 (トヒヤ) 商人宿

2. a wholesaler; also, such a store

From toiya.

問屋(とんや) • (ton'ya) 

1. a wholesaler; also, such a store

• Fukkoku Nihon Koten Zenshū: Setsuyōshū, Tōkyō: Gendai Shichō Shinsha, 2006 [1597], →ISBN