IN'TO, preposition [in and to.]
- Noting entrance or a passing from the outside of a thing to its interior parts. It follows verbs expressing motion. Come into the house; go into the church; one stream falls or runs into another. Water enters into the fine vessels of plants.
- Noting penetration beyond the outside or surface, or access to it. Look into a letter or book; look into an apartment.
- Noting insertion. Infuse more spirit or animation into the composition.
- Noting mixture. Put other ingredients into the compound.
- Noting inclusion. Put these ideas into other words.
- Noting the passing of a thing from one form or state to another
IN, preposition [Latin in ]
- in denotes present or inclosed, surrounded by limits; as in a house; in a fort; in a city.
- It denotes a state of being mixed, as sugar in tea; or combined, as carbonic acid in coal, or latent heat in air.
- It denotes present in any state; as in sickness or health.
- It denotes present in time; as in that hour or day.
American Dictionary of the English Language (1828) - http://webstersdictionary1828.com/