Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.

[EX Q]: What word means to make something obsolete? For example, the automobile made the horse and buggy obsolete. How would the word obsolete be applied as a verb? obsoleted The automobile obsoleted the horse and buggy. bleech. made obsolete The automobile made obsolete the horse and buggy. Not bad, but there's room for improvement. EDIT: I'm looking for a verb that has an edge; that captures the upheaval and aggressiveness involved in displacing a product or industry. Killed is a bit strong. killed The automobile killed the horse and buggy. A bit overstated. ran out of business The automobile ran the horse and buggy out of business marginally better, but still not good. disrupted the automobile disrupted the horse and buggy Better applied to an industry, like so the automobile disrupted the transportation industry in the early 20th century; particularly the horse and buggy. Wordy. smashed The automobile smashed the horse and buggy. More along the lines of what I seek, but a bit improper. XXX The automobile XXX the horse and buggy. What verb fits best here?.
[EX A]: Interestingly, you automatically used a word in your question that you didn't even comment onperhaps without realizing what you'd done: displace: 1 a : to remove from the usual or proper place specifically : to expel or force to flee from home or homeland // displaced persons 1 b : to remove from an office, status, or job 1 c obsolete : to drive out : BANISH 2 a : to move physically out of position // a floating object displaces water 2 b : to take the place of (as in a chemical reaction) : SUPPLANT So, in your example sentence: The automobile displaced the horse and buggy.

[EX Q]: As in 'the timeslot given to completing the task'. Would also be interested to hear if there's different usages for different scenarios.
[EX A]: According to dictionary.com, it should be two separate words 'time slot'. This useful article on compound words offers the following advice: Many of them are found in the dictionary and are not subject to our interpretation, our judgment, or our whim. Start with your dictionary before applying any other guidelines. I would be inclined to follow that advice, and use the dictionary version: time slot.

[EX Q]: Do the English have an ancient (obsolete) verb for the action of the book opening? For example, in Russian we say otkrit' (open the book), but in the Old slavonic the verb razognuti (to unbend the book) was used.
[EX A]:
This is a very interesting question. There may not be an old word in English that does what you describe, but it is important to note that the English word 'open' relative to a book meant something different in earlier times. To open a book now usually means to part or spread the cover and the pages into a position so you can read the pages contained in the book. However, books used to be made by folding sheets of paper larger than the page size and they would be sold without trimming the edges, so when you got your new book, it would be 'unopened' meaning that you couldn't turn the pages. You had to 'open' the book with a dull knife (like a letter opener) by ripping along the folds. (This is why some books have ragged edges of the text block, to evoke the memory of those ripped page edges.) The OED has e. transitive. To cut open the leaves of (a book) when they have been left joined along an edge during the making; to cut open (the leaves) of such a book. You will find old books described (by knowledgable book dealers) as 'unopened'. This correctly means that the folded sheets are un-ripped; it doesn't mean that no-one has ever spread the covers and looked inside.