to bind, as faggots of sheaves
稇 centers on binding things together, especially tying grain sheaves into bundles. The given meanings describe the act of binding and the resulting tied bundle.
稇 combines 禾 (grain) with 困, which likely contributes the sound and the idea of being enclosed or bound. The character expresses binding grain sheaves.
The grain radical 禾 on the left and 困 (which can suggest being confined) on the right together picture grain stalks being tied tightly into a bundle.
For コン, imagine a cone-shaped bundle of grain sheaves: cone -> コン, and the grain is bound tightly together.