棘心
jí​xīn

[humble self-reference]

棘心 jí​xīn
[humble self-reference]
(literary) A son's humble way of referring to himself when speaking of his deceased parents
tender sprouts of a thorn bush
(literary) The soft, center heart of a thorn bush; often used as a metaphor for a child who is difficult to raise
thorn wood heart
The heartwood of a thorn tree, often used for carving utensils like ladles