Origins
The English verb 'enchant' is a word that remembers what modernity has largely forgotten: that magic was once believed to operate through singing. Its Latin root tells us that to cast a spell was to sing over someone, and the entire vocabulary of Western magical practice is built on this connection between voice and power.
The word enters Middle English in the early fourteenth century from Old French 'enchanter' (to bewitch, to charm), which derives from Latin 'incantāre,' meaning 'to chant a magic formula over' or 'to cast a spell by singing.' The Latin verb combines 'in-' (upon, over) with 'cantāre' (to sing), a frequentative form of 'canere' (to sing). The PIE root is *kan- (to sing), which also produced Welsh 'canu' (to sing) and possibly Old Irish 'canaid' (sings).
The musical root of 'enchant' generated one of the largest word families in the English-Latin vocabulary of sound. 'Chant' (from French 'chanter,' from Latin 'cantāre') is the most direct descendant. 'Canticle' (a hymn), 'cantata' (a musical composition), 'cantor' (a singer, especially a liturgical one), and 'canto' (a section of a long poem — originally one that could be sung in a single session) all share the root. 'Accent' (from 'ad-' + 'cantus,' singing to) originally described the musical quality of speech. 'Incentive' (from 'incentivus,' setting the tune) meant something that initiated or encouraged — literally 'striking up the song.'
Latin Roots
The belief that magic was performed through singing or chanting is among the most widespread in human culture. In ancient Mesopotamia, incantation priests recited formulae over the sick. In Greek mythology, the Sirens enchanted sailors with their singing. In Norse tradition, Odin learned magical songs (galdr) that could heal wounds, bind enemies, and raise the dead. The Latin word 'incantāre' codified this belief in language: to enchant was literally to sing upon.
'Incantation' — the noun form, referring to a spoken or sung magical formula — entered English in the fourteenth century and has remained the standard term for verbal spell-casting. The relationship between 'enchant' and 'incantation' is often invisible to English speakers because the words have diverged in pronunciation and usage, but they are twins from the same Latin parent.
The semantic softening of 'enchant' follows the same trajectory as 'bewitch' and 'charm.' In its medieval usage, enchantment was serious business — the Church condemned it as a real spiritual danger, and accusations of enchantment could lead to prosecution. By the seventeenth and eighteenth centuries, as Enlightenment rationalism eroded belief in literal magic, 'enchant' began its migration toward lighter meanings: to delight, to charm, to captivate. An 'enchanting' evening or an 'enchanting' person involves no sorcery — only the metaphorical 'spell' of pleasure and attraction.
Figurative Development
French has preserved the full range: 'enchanté,' the standard polite response to an introduction ('pleased to meet you'), is literally 'enchanted' — as if meeting the person had cast a pleasant spell. Spanish 'encantado' works the same way. English lost this greeting usage, but the underlying metaphor — that being delighted by someone is akin to being under a spell — survives in every use of 'enchanting.'
The Arthurian legends gave English 'enchantress' as a specific character type — Morgan le Fay, Nimue, Viviane — women whose power lay specifically in magical singing and chanting. The enchantress differs from the witch in her method: where the witch might use potions, herbs, or rituals, the enchantress works through voice and song. This literary distinction, encoded in the etymology, persists in fantasy literature to the present day.