extensiveextensive

Extensive comes from Late Latin extensīvus, from Latin extensus, the participle of extendō ‘to stretch out’, from tendō ‘to stretch’.

1. Proto-Indo-Europeanc. 4500–2500 BCE*téndeti¹reconstructed
2. Proto-Italicc. 1500–700 BCE*tendō¹‘to stretch’reconstructed
3. Latinc. 75 BCE–200 CEtendō¹‘to stretch’
4. Latinc. 75 BCE–200 CEextendō¹‘to stretch or thrust out’
5. Latinc. 75 BCE–200 CEextensus¹‘stretched out’
6. Late Latinc. 200–600 CEextensīvus¹‘extensive’
7. Englishearliest quotation 1650extensive¹

1. ¹ Wiktionary, English extensive
2. Earliest quotation in Wiktionary’s entry: 1650, Thomas Browne, Pseudodoxia Epidemica: […]: “For station is properly no rest, but one kind…”.