マクベカ
Ainu「岡の道」
Kayano prints the phrase as mak peka and illustrates travelling from the inland/back side. Batchelor likewise treats it as adverbial. This is compatible with 岡の道 as a route inland, but the dictionaries do not attest the expression as a road noun.
References
Occurrences (1)
- National Institute for Japanese Language and Linguistics · 乾巻 · Page 13, line 13 · マクベカ
…イ高リイ浜ゟ出し風ケシカクベシ泊ゟ出し風トマクベシ峠ルチシ岡の道マクベカ燃るアベセベク天河ベツノカ気ハーリヽ虹ラヲチ牽牛チクサグル織女マラフトノカ参宿イウタニ水の湧ワツ…