Hydr
Water(dehydrate, hydrant, hydrogen)
Imag
Like, likeness(image, imaginary, imagination)
Init
Beginning(initial, initiate, initiative)
Junct
Join(adjective, conjunction, juncture)
Jud, jur, jus
Law(judge, jury, justice)
Lab
Work(collaborate, elaborate, labor)
Lat
Carry(collate, relate, translate)
Log
Word(apology, dialogue, eulogy)