Tō-on, a Sino-Japanese kanji pronunciation layer; imported to Japan beginning in the mid-Heian period and ending in the Edo period. Uncommon. / (more specifically) The later subset of above.

三板, 舢板: sampan

to drive (a vehicle) / to drive (cattle)

(historical, politics, archaic) a lesser counselor in the 太政官 (Ōimatsurigoto no Tsukasa, “Great Council of State”)