The Collaborative International Dictionary of English v.0.48:

Instill \In*still"\, v. t. [imp. & p. p. Instilled; p. pr. &
   vb. n. Instilling.] [L. instillare, instillatum; pref. in-
   in + stillare to drop, fr. stilla a drop: cf. F. instiller.
   See Distill.] [Written also instil.]
   1. To drop in; to pour in drop by drop.
      [1913 Webster]

            That starlight dews
            All silently their tears of love instill. --Byron.
      [1913 Webster]

   2. Specifically: To infuse (knowledge or attitudes) into the
      mind of another, slowly or gradually; to impart gradually;
      to cause to be imbibed.
      [PJC]

            How hast thou instilled
            Thy malice into thousands.            --Milton.

   Syn: To infuse; impart; inspire; implant; inculcate;
        insinuate.
        [1913 Webster]

WordNet (r) 3.0 (2006):

instill
    v 1: impart gradually; "Her presence instilled faith into the
         children"; "transfuse love of music into the students"
         [syn: instill, transfuse]
    2: enter drop by drop; "instill medication into my eye" [syn:
       instill, instil]
    3: produce or try to produce a vivid impression of; "Mother
       tried to ingrain respect for our elders in us" [syn:
       impress, ingrain, instill]
    4: teach and impress by frequent repetitions or admonitions;
       "inculcate values into the young generation" [syn:
       inculcate, instill, infuse]
    5: fill, as with a certain quality; "The heavy traffic tinctures
       the air with carbon monoxide" [syn: impregnate, infuse,
       instill, tincture]