noun
common, low-grade katsuobushi
A type of dried bonito flakes (katsuobushi) that is less refined and more affordable than the higher-grade 本節 (honbushi). Used in everyday cooking.
荒節はだしを取るのに手軽で、家庭でよく使われる。
Arabushi is convenient for making stock and is often used at home.
noun
bamboo rod used in imperial exorcism ceremonies
Only with reading あらよ
A specialized ritual implement used in traditional imperial exorcism rites (大祓, ōharae). Rarely encountered outside historical or ceremonial contexts.
大祓の儀式では、荒節と呼ばれる竹の棒が用いられた。
In the ōharae ceremony, a bamboo rod called arabushi was used.
荒 (rough, coarse) + 節 (node, joint, or segment of dried fish). The second sense is a homograph with a different reading (あらよ) and likely a separate origin, referring to a bamboo rod.