to depend, to be based on

modest

dependence, basis (on conditions, a theory, etc.)

to depend, to be based on

(one's) station, post / department, bureau

vanishing, disappearance, removal, erasure

(intransitive) to vanish, to disappear / (transitive) to make something vanish or disappear, to remove, to erase

a deficiency

to lack, to want

preface by the author / prefacing one's book