bastion
Uddāpa [*udvāpa] foundation of a wall, in stock phrase daḷh° etc. D III 101; S V 194 = also at Ja VI 276 (= pākāra-vatthu commentary). Kern, Toev. sub voce refers it to Sanskrit ud-vapati to dig out, and translates "moat, ditch". The meaning "wall" or "mound" however harmonises quite well with the derivation from "digging", cf. English dike > German Teich. See also uddāma 2.
【陽】 城堡，監獄。
(masc, masc) embankment; rampart; fortification; wall bastion Construction: ud + √vap > dap > dāp + *a