English
subtend
Subtend comes from Latin subtendere.
- Latinc. 75 BCE–200 CEsubtendere
- Englishearliest quotation 2012subtend
attested reconstructed ? uncertain or disputed deepest recorded ancestor
Lineage
- Latinc. 75 BCE–200 CEsubtendere
- Englishearliest quotation 2012subtend
Earliest quotation: 2012, Me, myself, us: “[…] trillions of bacteria, each equally an individual, which…”.
A compound of sub ‘under’ + tendere ‘to stretch, extend’
Proto-Indo-European *upó ‘up; from below’
Proto-Italic *supo ‘under’
Latin sub ‘under’
Proto-Indo-European *téndeti
Proto-Italic *tendō ‘to stretch’
Latin tendō ‘to stretch, extend’
Every English word from Latin subtendere
Today it means
verb To use an angle to delimit (mark off, enclose) part of a straight or curved line, for example an arc or the opposite side of a triangle.
Language periods are conventional ranges, not dates for this word.
Etymograph / Latin subtendere / subtend