出典:Wiktionary
Inherited from Middle English engreynen, from the French phrase en grain; reinforced by the phrase (dyed) in grain. See grain.
ingrain (三人称単数 現在形 ingrains, 現在分詞 ingraining, 過去形および過去分詞形 ingrained)
ingrain (not comparable)
ingrain (複数形 ingrains)
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “ingrain”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)