PREOCCUPY
preoccupy
(verb) engage or engross the interest or attention of beforehand or occupy urgently or obsessively; “His work preoccupies him”; “The matter preoccupies her completely--she cannot think of anything else”
preoccupy
(verb) occupy or take possession of beforehand or before another or appropriate for use in advance; “the army preoccupied the hills”
Source: WordNet® 3.1
Etymology
Verb
preoccupy (third-person singular simple present preoccupies, present participle preoccupying, simple past and past participle preoccupied)
(transitive) To distract; to occupy or draw attention elsewhere.
(transitive) To occupy or take possession of beforehand.
Source: Wiktionary
Pre*oc"cu*py, v. t. [imp. & p. p. Preoccupied (-pid); p. pr. & vb. n.
Preoccupying.] Etym: [Cf. F. préoccuper. See Preoccupate, Occupy.]
1. To take possession of before another; as, to preoccupy a country
not before held.
2. To prepossess; to engage, occupy, or engross the attention of,
beforehand; hence, to prejudice.
I Think it more respectful to the reader to leave something to
reflections than to preoccupy his judgment. Arbuthnot.
Source: Webster’s Unabridged Dictionary 1913 Edition