某
mǒu · HSK 3
some
甘 sweet + 木 tree = 某: a 'certain' fruit tree, now means some/certain
某 decomposes into 甘 (sweet) on top and 木 (tree) below. Originally meant a specific sweet fruit tree (plum), later borrowed for the abstract sense 'some/certain'. The 甘+木 shape is your hook for mǒu.
某 — sweet 甘 on top + tree 木 below
Originally a pictograph of a plum tree, with 甘 (sweet) marking the fruit and 木 (tree) as the base — the early form of 梅 'plum'. The character was later borrowed phonetically to mean 'a certain (one)' or 'someone', and a new character 梅 was created for 'plum'.