Meaning

noun either of the two times of the year when the sun is at its greatest distance from the celestial equator

originEtymology tree Proto-Indo-European *sóh₂wl̥ Latin sōl Proto-Indo-European *steh₂- Proto-Indo-European *stísteh₂ti Proto-Italic *sistō Latin sistō Proto-Indo-European *-yós Proto-Italic *-ios Old Latin -ios Latin -ius Latin -ium Latin sōlstitiumlbor. Old French solsticebor. Middle English solstice English solstice From Middle English solstice, from Old French solstice, from Latin sōlstitium.

Etymology from Wiktionary, CC BY-SA 3.0