恣

zì = z + Ø4

to abandon restraint / to do as one pleases / comfortable (dialect)

恣 character breakdown

恣
- 心
  - 丶
  - 乚
- 次
  - 冫
  - 欠
    - 人
      - 丿
      - ㇏
    - ⺈

heart / mind / intention / center / core / CL:顆|颗[ke1],個|个[ge4]

心 = 乚 + 丶 : Marie Curie (xi) uses a shovel (乚) to dig a hole in front of the encampment ((e)n1). She wants to bury her heart (心). To the side are three petal leaves (丶), with which she wants to cover it afterwards.

次

cì = c + Ø4

next in sequence / second / the second (day, time etc) / secondary / vice- / sub- / infra- / inferior quality / substandard / order / sequence / hypo- (chemistry) / classifier for enumerated events: time

次 = 冫 + 欠 : Mnemonic symbol: the cube, as in words involving 三次 relate to "cubic equations" or "cube (third power)". The King of Chu (c) pulls a popsicle (冫) out of the cube (次) in the space station's bathroom (Ø4) and leaves an IOU note (欠) on the cube.