whatso
/ˈwɒtsəʊ
/pronoun & determiner archaic
Whatever: [as pronoun]: whatso goes into their brain comes out as prose...
- They answered, ‘O our lord, we know not at all, but he bade us deface whatso we had done.’
- Then said the king, ‘Choose for thyself a horse, and whatso thing else thou desirest among my matters.’
Origin
Middle English: reduced form of Old English swā hwæt swā 'so what so'.