imperial archery ceremony (Heian/Kamakura)
Historical court ceremony held on the fifth day of the tenth lunar month, where the emperor observed prize archery. Specific to the Heian and Kamakura periods.
Yubahajime was an archery ceremony held at the imperial court from the Heian through the Kamakura periods.
first bow shooting of the year (military families)
In military families, the first shooting of the bow after the New Year or after rebuilding the archery range. A more general, though still historical, usage.
In warrior households, yubahajime was performed after the New Year or after the reconstruction of the archery range.
Compound of 弓場 (yuba, 'archery range') and 始め (hajime, 'beginning'). The exact historical derivation is uncertain, but the term refers to the first use or opening of the archery ground in ceremonial contexts.