intersection English · revision 15352

+ {{infobox|confidence=established|formation=borrowing|attested=1559|origins=ine-pro *sek-}}

+

+ ==Pronunciation==

+ * IPA: /ˈɪntəɹˌsɛkʃən/, /ˌɪntəɹˈsɛkʃən/^(Wiktionary)

+

+ ==Etymology==

+ It is [[bor|frm|intersection]] and directly [[la|intersectiō|t=a cutting asunder]],^(Etymonline)^(MWU 2024)^(NODE 1998) from the past participle stem of [[m|la|intersecō|t=to cut asunder]] (see [[intersect]]),^(Etymonline)^(NODE 1998) from [[m|la|inter-|t=between]] and [[m|la|secō|t=to cut]], from [[ine-pro|*sek-|t=to cut]].^(Etymonline)

+

+ ==Earliest recorded meaning==

+ The act or fact of crossing, at first a term in geometry: 1559 in the OED and Merriam-Webster, the 1550s in Etymonline.^(OED 1989)^(MWU 2024)^(Etymonline)

+

+ ==Semantic evolution==

+ The place where two things cross is also from 1559,^(OED 1989) and a crossroads, chiefly North American, from 1864.^(Etymonline)^(OED 1989) In logic, the relation of two overlapping classes is from 1909,^(OED 1989) and in set theory the set of elements common to two sets is in modern dictionaries.^(AHD)^(Collins 2023)

+

+ ==Timeline==

+ * 1559 – crossing; point of crossing.^(OED 1989)

+ * 1864 – a crossroads.^(Etymonline)

+ * 1909 – intersection in logic.^(OED 1989)

+

+ ==Modern meaning==

+ ===Noun===

+ # A place where roads or other things cross; a [[junction]].^(AHD)^(Collins 2023)

+ # The act of intersecting, or the state of being intersected.^(AHD)^(Collins 2023)

+ # ''(mathematics)'' The point or points where lines or surfaces cross; the [[set]] of elements common to two or more sets.^(AHD)^(Collins 2023)

+

+ ==Word family==

+ * [[intersectional]]

+

+ ==Related words==

+ * [[intersect]]

+ * [[intersegment]]

+ * [[section]]

+ * [[sect]]

+ * [[segment]]

+ * [[insect]]

+

+ ==References==

+ {{reflist}}