長谷

/patuse/ → /fatuse/ → /fase/ →/hase/

From the 枕(まくら)詞(ことば) (makura kotoba, “pillow word”) 長(なが)谷(たに)の泊(はつ)瀬(せ) (nagatani no Hatsuse, literally, "the long valley of Hatsuse"); the modern notation of 泊(はつ)瀬(せ) (Hatsuse) being 初(はつ)瀬(せ). Evolved into Hase by sound change. (Can this⁽⁺⁾ etymology be sourced?)

The modern location of Hatsuse is in Sakurai, Nara Prefecture.

• IPA^(key): [ha̠se̞]

長谷(はせ) • (Hase) 

1. Hase (a former village in Kamiina district, Nagano Prefecture, Japan, now part of the city of Ina)
2. a surname

• 長谷(はせ)川(がわ) (“Hasegawa”)
• 長谷(はせ)部(べ) (Hasebe)
• 長谷(はせ)見(み) (Hasemi)

Other various nanori readings.

長(おさ)谷(たに) or 長(ちょう)谷(たに) or 長(ちょう)谷(や) • (Osatani or Chōtani or Chōya) 

1. a surname

長(なが)谷(たに) or 長(なが)谷(や) • (Nagatani or Nagaya) 

1. Nagatani (a district of the town of Aga, Niigata Prefecture, Japan)
2. Nagatani, Nagatani-oike (a dam in Hyogo prefecture, Japan)
3. Nagaya (a district of the city of Kakegawashi, Shizuoka Prefecture, Japan)
4. a surname

長(なが)谷(やつ) • (Nagayatsu) 

1. Nagayatsu (a district of the city of Minamiboso, Chiba Prefecture, Japan)