People were soon called 'old' in those days. Dante, at 35, was in the 'middle' of life; after which, all was downhill. Hoccleve was miserably old at 53; Works, ed. Furnivall, p. 119. Jean de Meun, in his Testament, ed. Méon, iv. 9, even goes so far as to say that man flourishes up to the age of 30 or 40, after which he 'ne fait que langorir.' Premature age seems to have been rather common in medieval times. Moreover, Gower is speaking comparatively, as of one no longer 'in the floures of his youthe.'
Ten Brink, Chaucer's Sprache, &c., p. 174.
The heroic couplet was practically unknown to us till Chaucer introduced it. The rare examples of it before his time are almost accidental. A lyrical poem printed in Böddeker's Altenglische Dichtungen, p. 232, from MS. Harl. 2253, ends with a fair specimen, and is older than Chaucer. The last two lines are:—
'For loue of vs his wonges waxeþ þunne,
His herte-blod he ȝef for al mon-kunne.'
The oldest single line of this form is at the end of Sawles Warde (ab. A.D. 1210); see Spec. of English, pt. i. p. 95:—
'That ich mot iesu crist mi sawle ȝelden.'