riddle; puzzle; enigma; enigmatic; mysterious
to be buried; to be covered; to be hidden
to find resolution; to be settled; to be collected; to be assembled; to be well arranged; to be in order
to sprout; to put forth buds
mediation; agency; carrying (germs, diseases, etc.); transmission; mediation
to pile up; to heap up; to stack up; to repeat many times over; to go through repeatedly; to accumulate
straight (ahead); direct; upright; straightforward; honest; frank
heliocentric theory; Copernican theory; heliocentrism; heliocentricism
close (e.g. friend); familiar; familiar (e.g. story); well-known (to one); close (relatives); closely related
thesis; essay; treatise; paper; article
academic world; academia; academic circles; scientific world; learned circles
becoming a pupil (of); becoming an apprentice
pupil; disciple; adherent; follower; apprentice; young person
to lose; to be defeated; to succumb; to give in; to be inferior to; to break out in a rash due to (e.g. lacquer, shaving, etc.)
manuscript; copy; draft; notes; contribution
to betray; to turn traitor to; to double-cross
hypothesis; supposition; assumption; tentative theory
foreword; preface; introduction
addition; annexation; appendage
banning of books; banned book
proof; testimony; demonstration; verification; certification
hard to get; hard to come by
lawfulness; legality; validity; legitimacy
sensible; sensuous; intuitive
that kind of; of the sort; of the kind; such
to make (the best) use of; to put to good use; to let live; to keep alive; to revive; to resuscitate