|—vb (foll by to)|
|1.||to state or utter (something) in reply|
|2.||(intr) to act in reply; react: to respond by issuing an invitation|
|3.||to react favourably: this patient will respond to treatment|
|4.||an archaic word for correspond|
|5.||architect a pilaster or an engaged column that supports an arch or a lintel|
|6.||Christianity a choral anthem chanted in response to a lesson read at a church service|
|[C14: from Old French respondre, from Latin rēspondēre to return like for like, from |
plainchant melody and text originally sung responsorially-i.e., by alternating choir and soloist or soloists. Responsorial singing of the psalms was adopted into early Christian worship from Jewish liturgical practice. Most frequently the congregation sang a short refrain, such as Amen or Alleluia, between psalm verses sung by a cantor. As medieval plainchant developed, more elaborate refrains (R) were sung by a choir alternating with soloists singing psalm verses (V), producing a musical form R V1 R V2R. The responsory, or refrain, was frequently abbreviated on its repetition. Its text usually related to the meaning of the feast day or the content of the psalm. Only a few such chants survive in this long form, which is now normally curtailed.
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