Calligraphy (N): beautiful handwriting.
This word can be broken as "kallos" which means "beauty" and "graphia" which means "writing", the root "graphia" comes from verb root "graphein" which means "to write". So common cognates of the root graphy or graph are graphical, autograph, seismograph, photograph, graphite etc
Callisthenic's (N Pl): gymnastic exercise to achieve fitness and grace of movement.
This word also comes from the same root and can be broken as “kallos” + "sthenos" which means, "strength".
Regards,
V