buttery

Etymology 1

From Middle English buttry, equivalent to butter + -y. Piecewise doublet of butyric, butter ultimately being from Latin būtȳrum and -y being a doublet of -ic.

adj

1. Made with or tasting of butter.
   The buttery-tasting cookie was actually made with margarine, but you couldn't tell by tasting it.
2. Resembling butter in some way, such as yellow color or smooth texture.
   The old paper was a buttery color you no longer get.
   While the European pear is, at its finest, buttery and surrenders to the slightest pressure, Asian pears are firm, very crisp, hugely juicy and sweet and, in some cases, highly aromatic – spicy almost. 5 September 2015, Mark Diacono, “In praise of the Asian pear”, in The Daily Telegraph (Gardening), archived from the original on 2015-09-12, pages 1–2
   Most libraries have smooth, buttery legatos and exciting, natural-sounding spiccatos. 2019, Gina Zdanowicz, Spencer Bambrick, The Game Audio Strategy Guide: A Practical Course
3. (informal) Marked by insincere flattery; obsequious.
   He'll be nothing but enraptured with your buttery words . 1997, Russell Wild, Games Bosses Play, page 100
   Dawson, for one, is on the right wavelength, goosing his buttery game-show host persona into a caricature of unctuous evil. 2000, Scott von Doviak, Stephen King Films FAQ
4. (computing, video games) Short for buttery smooth.
   (see title) October 30,2014, Greg Kumparak, “YouTube Can Now Play Videos At A Buttery 60 Frames Per Second”, in Tech Crunch
   These include improved textures and character models plus a new buttery frame rate as the game gets boosted to 1080p resolution and animation of 60 frames per second. Stylish. April 28, 2015, Jason Hidalgo, “Shout at the devil: DmC Devil May Cry Definitive Edition review”, in Reno Gazette Journal
   I dipped a few of the Nvidia-specific settings since I prefer smooth, buttery frame rate, but that’s impressive in itself given it’s the only game this year to make that happen. November 19, 2015, Hayden Dingman, “Assassin’s Creed Syndicate PC review impressions: This gorgeous, mostly smooth game is no Unity”, in PC World
   For video, setting a higher frame rate, like 60 frames per second, means having the ability for getting nicer, buttery, silky-smooth, slow motion—if you're into that sort of thing. 2018, Darrin Thompson, Set The Tone
   That frame rate is buttery. Your computer has an excellent graphics card, Masato 2018, Dachima Inaka, Do You Love Your Mom and Her Two-Hit Multi-Target Attacks?
   So, if you're looking to play PC games with a buttery frame rate, these monitors are ready to deliver a great experience, and it gets even better when paired with Nvidia’s G-Sync or AMD’s FreeSync. December 12, 2021, Mark Knapp, Matt Elliot, “Best 1080p Gaming Monitors 2021”, in IGN

Etymology 2

From Middle English boterie, from Old French boterie and Medieval Latin buteria, from Late Latin botāria, from a variant form of butta (“cask, bottle”). The form was probably influenced by butter.

noun

1. A room for keeping food or beverages; a storeroom.
   Pretty Pia from the buttery was a slut who was working her way through every knight in the castle. 1999, George R.R. Martin, A Clash of Kings, Bantam, published 2011, page 458
2. (UK) A room in a university where snacks are sold.