Definition of 「陹」:
1. 古同“昇”。
(Ancient form of "昇".)
2. 容量单位。升,十龠也。从斗,亦象形。——《说文》。按,十合也。两匊谓之升。——《小尔雅》
(Capacity unit. A "升" is equivalent to ten "龠". It is derived from "斗" and also depicts its shape. — "Shuo Wen". Note that ten "合" is equivalent to one "升". Two "匊" is called a "升". — "Xiao Er Ya".)
蕃衍盈升。——《诗·唐风·椒聊》
(Flourishing "升". — "Book of Songs, 唐风 section, 椒聊".)
3. 十合为一升,十升为一斗。公制一升为1000毫升,合一市升。今公制与市制相同。
(Ten "合" equal one "升", ten "升" equal one "斗". In metric system, one "升" is 1000 milliliters, equivalent to one liter. Today, the metric system is the same as the official system.)
如:升斛(升与斛的合称);升合(一升一合。比喻数量很小);升勺(一升一勺之量,比喻数量很少);升合之利(微利)
(For example: "升斛" (a combination of "升" and "斛"); "升合" (one "升" and one "合", a metaphor for a very small amount); "升勺" (the amount of one "升" and one "勺", a metaphor for a very small quantity); "升合之利" (small profit).)