The word "groundskeepings" is spelled with two consecutive "s" letters, which might seem confusing to some. However, it can be explained with the help of phonetic transcription. The first "s" is pronounced as the voiceless /s/ sound, while the second "s" is pronounced as the voiced /z/ sound. This follows the English language rule of doubling consonants when adding a suffix that begins with a vowel. Therefore, "groundskeeping" becomes "groundskeepings" when pluralized.
The word "groundskeepings" does not have a clear etymology, as it is not widely used or recognized as a standard English word. It appears to be a combination of the words "grounds" and "keepings", possibly referring to the act of maintaining or taking care of grounds, such as in landscaping or grounds maintenance.