Full-recen

According to the Old English Dictionary:

full-recen

adj. Full quick, very quick; citissĭmus :-- Dú meahtest ðé fullrecen on ðæm ródere ufan siððan weorþan thou, very quick, mayest afterwards advance into the sky above, Bt. Met. Fox 24, 33; Met. 24, 17. full-recen