From humnos; to hymn, i.e. Sing a religious ode; by implication, to celebrate (God) in song -- sing a hymn (praise unto).
see GREEK humnos
1. transitive, to sing the praise of; sing hymns to: τινα, Acts 16:25; Hebrews 2:12.
2. intransitive, to sing a hymn, to sing: Matthew 26:30; Mark 14:26 (in both passages of the singing of the paschal hymns; these were Psalm 113-118 and Psalm 136, which the Jews call the 'great Hallel' (but see Ginsburg in Kitto under the word Hallel; Edersheim, The Temple etc., p. 191f; Buxtorf (edited by Fischer), p. 314f)); Psalm 64:13