Where does “solstitially” come from?

solstitially (English) comes from English solstitial, from Latin solstitialis, from Latin sōlstitium, from Latin -ium, from Latin -ius, from Proto-Italic -jōs, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

solstitially (English): In a solstitial manner; relating to solstices

Definitions

  1. In a solstitial manner; relating to solstices

Ancestry of “solstitially”, step by step

solstitially traces back through two separate lines of ancestry.

via English solstitial

StepLanguageWordMeaning
1EnglishsolstitialPertaining to a solstice; Occurring on a solstice
2Latinsolstitialissolstitial
3Latinsōlstitiumsummer solstice
4Latin-iumSuffix used to form abstract nouns, sometimes...
5Latin-iusforming adjectives from nouns; nominative neuter...
6Proto-Italic-jōsForms comparative adjectives
7Proto-Indo-European-yósCreates adjectives from noun or verb stems

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European -yósEvery word from Latin -iumEvery word from Latin -ius