School
Old English scōl, scolu, via Latin from Greek skholē ‘leisure, philosophy, lecture place’, reinforced in Middle English by Old French escole .
wiktionary
From Middle English scole, schole(“group of persons, multitude, host, school of fish”), from Middle Dutch scole(“multitude, troop of people, swarm of animals”), from Old Dutch *scola, *skola(“troop, multitude”), from Proto-Germanic *skulō(“crowd”), from Proto-Indo-European *(s)kʷel-(“crowd, people”). Cognate with Middle Low German schōle(“multitude, troop”), Old English scolu(“troop or band of people, host, multitude, school of fish”). Doublet of shoal. Compare Hebrew הַשְׂכָּלָה (“*(s)cɑlɐ–education”), Hebrew אֶשְׁכּוֹל (“*(s)kʷol– cluster”).
From Middle English scole, from Old English scōl(“place of education”), from Proto-Germanic *skōla(“school”), from Late Latin schola, scola(“learned discussion or dissertation, lecture, school”), from Ancient Greek σχολεῖον(skholeîon), from σχολή(skholḗ, “spare time, leisure; conversations and the knowledge gained through them during free time; the places where these conversations took place”), from Proto-Indo-European *seǵʰ-(“to hold, have, possess”). Doublet of schola and shul. Compare Old Frisian skūle, schūle(“school”) (West Frisian skoalle, Saterland Frisian Skoule), Dutch school(“school”), German Low German School(“school”), Old High German scuola(“school”), Old Norse skóli(“school”). Influenced in some senses by Middle English schole(“group of persons, host, company”), from Middle Dutch scole(“multitude, troop, band”). See school1. Related also to Old High German sigi(German Sieg, “victory”), Old English siġe, sigor(“victory”).
etymonline
school (n.1)
"place of instruction," Old English scol, from Latin schola "intermission of work, leisure for learning; learned conversation, debate; lecture; meeting place for teachers and students, place of instruction; disciples of a teacher, body of followers, sect," from Greek skhole "spare time, leisure, rest, ease; idleness; that in which leisure is employed; learned discussion;" also "a place for lectures, school;" originally "a holding back, a keeping clear," from skhein "to get" (from PIE root *segh- "to hold") + -ole by analogy with bole "a throw," stole "outfit," etc.
The original notion is "leisure," which passed to "otiose discussion" (in Athens or Rome the favorite or proper use for free time), then "place for such discussion." The Latin word was widely borrowed (Old French escole, French école, Spanish escuela, Italian scuola, Old High German scuola, German Schule, Swedish skola, Gaelic sgiol, Welsh ysgol, Russian shkola). Translated in Old English as larhus, literally "lore house," but this seems to have been a glossary word only.
Meaning "students attending a school" in English is attested from c. 1300; sense of "school building" is first recorded 1590s. Sense of "people united by a general similarity of principles and methods" is from 1610s; hence school of thought (1864). School of hard knocks "rough experience in life" is recorded from 1912 (in George Ade); to tell tales out of school "betray damaging secrets" is from 1540s. School bus is from 1908. School days is from 1590s. School board from 1870.
school (n.2)
"group of fish," late 14c., scole, from Middle Dutch schole (Dutch school) "group of fish or other animals," cognate with Old English scolu "band, troop, crowd of fish," from West Germanic *skulo- (source also of Old Saxon scola "troop, multitude," West Frisian skoal), perhaps with a literal sense of "division," from PIE root *skel- (1) "to cut." Compare shoal (n.2)). For possible sense development, compare section (n.) from Latin secare "to cut."
school (v.1)
"to educate; to reprimand, to discipline," mid-15c., from school (n.1). Related: Schooled; schooling.
school (v.2)
"collect or swim in schools," 1590s, from school (n.2). Related: Schooled; schooling.
