decilitre, (kokuji)
竕 is a Japanese-made kokuji that represents a decilitre, a unit of volume equal to one-tenth of a litre. Its meaning is specific to measurement and has no broader conceptual extensions.
竕 is a kokuji created in Japan by combining 立 (standing, here likely used phonetically for 'deci' from 立's reading リットル association) and 分 (part, fraction) to represent a decilitre, one-tenth of a litre.
Imagine a measuring cup standing (立) with a fraction (分) marked on it: one-tenth of a litre, a decilitre.
For デシリットル, think of a 'desi' (デシ) cup that holds a little (リットル) liquid. The standing cup with a fraction mark shows exactly one decilitre.
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