instil

 
Pronunciation: /ɪnˈstɪl/
(also instill)

verb (instils, instilling, instilled)

[with object]
  • 1gradually but firmly establish (an idea or attitude) in a person’s mind: the standards her parents had instilled into her
  • 2put (a substance) into something in the form of liquid drops: she was told how to instil eye drops

Derivatives

instillation

Pronunciation: /-ˈleɪʃ(ə)n/
noun

instilment

noun

Origin:

late Middle English (in instil (sense 2)): from Latin instillare, from in- 'into' + stillare 'to drop' (from stilla 'a drop')

Spelling rule

Double the l when adding endings which begin with a vowel to words which end in a vowel plus l (as in travel): (instils, instilling,instilled).