Han character

𮩿's readings vary by source. A Japanese kanji lexicon classifies it as a kokuji (a Japan-made character) and records hataru and taru from 篇目次第. A Chinese commentary quotes it in the Huainanzi, a Chinese philosophical work presented in 139 BCE, in a line about not trying to lead or fearing to lag; it debates whether 𮩿 abbreviates 騁 (“gallop”) or means 馳 (“gallop”). Keep that galloping gloss with the quotation.