zi1
industrious; produce; bear

strokes 12
radical
strokes after radical 10
孳乳 孳乳 zi1 ru3
to multiply (kinds, difficulties); to reproduce; to derive (compounds)

孳生 孳生 zi1 sheng1
to multiply; to breed

孳孳 孳孳 zi1 zi1
variant of 孜孜