When.
Source: Webster's dictionaryFor of fortunes sharp adversitee The worst kynde of infortune is this, A man to han ben in prosperitee, And it remembren, whan it passed is. Geoffrey Chaucer
He that will not whan he may, Whan he would, he shall haue nay. John Heywood
And thus love is founded otherwhile upon good prouffitable and this love endureth as longe as he seeth his prouffit. And herof men saye a comyn proverbe in England that love lasteth as longe as the money endureth and whan the money faylleth than there is no love. William Caxton
For whan men wene best to have achieved, Ful ofte it is al newe to beginne: The werre hath no thing siker, thogh he winne. John Gower
And ones their hastie heate a littell controlde, Than perceiue they well, hotte love soone colde. And whan hasty witlesse mirth is mated weele, Good to be mery and wise, they thinke and feele. John Heywood
In a somer seson, whan softe was the sonne, I shoop me into shroudes as I a sheep were, In habite as an heremite unholy of werkes, Wente wide in this world wondres to here. Ac on a May morwenynge on Malverne hilles Me bifel a ferly, of Fairye me thoghte. William Langland