Pronunciation: [sˈa͡ɪzd ˌɪntʊ] (IPA) 
The phrase "sized into" refers to the process of dividing something into particular size classifications. In terms of pronunciation, "sized" is pronounced as /saɪzd/, with a long "i" sound followed by a "z" sound. "Into" is pronounced as /ˈɪntuː/, with a stress on the first syllable and a long "i" sound. When combined, the word "sized into" would be pronounced as /saɪzd ˈɪntuː/ and is spelled exactly as it sounds.
"Sized into" is a phrasal verb that is primarily used in the context of clothing or garments. It refers to the process of determining the appropriate size of a particular item of clothing for an individual, usually based on their body measurements or proportions.
In this sense, "sized into" can also imply the process of trying on different sizes of a garment, assessing its fit, and eventually selecting the most suitable size. It involves considering various factors such as the garment's fabric, style, and intended purpose, as well as the individual's body shape, height, and weight.
When someone describes themselves as being "sized into" a certain clothing item, it implies that they have found the correct size that fits them well and meets their comfort and style requirements. This term may be used in retail or fashion contexts, where salespeople or customers themselves engage in the process of "sizing into" garments. It is particularly relevant in situations where there may be variations in sizing across different brands or regions.
Overall, "sized into" denotes the act of determining the most appropriate size for an individual's specific body measurements, as well as the subsequent selection of a well-fitting garment.
The phrase "sized into" is not a word with a distinct etymology. It seems to be a combination of the verb "sized" and the preposition "into", which are both commonly used in English.
The word "size" has its origins in Old French and Latin, derived from the Latin word "situs", meaning "a seat" or "a position". Over time, "size" came to refer to the dimensions or extent of something. As a verb, "size" means to adjust or determine the dimensions or proportions of something.
The preposition "into" is derived from Old English and has remained relatively unchanged. It indicates movement or transformation from one state or location to another.
