_brought_, _naught_, _right_, _knight_; so too _douther_, daughter, _neth_, a net, _uth_, out, _woth_, wot, _leth_, let, _lauthe_ (_laught_), caught, _nither-tale_ (_nighter-tale_), night-time.[35] On the other hand, _t_ stands for _th_ in _hauet_, 564, _seyt_, 647, _herknet_, 1, _wit_, 100. When _th_ answers to the modern sound, it seems equivalent to A.S. ð rather than to A.S. þ; examples are _mouth_, 433, _oth_, 260, _loth_, 261. _Y_ and _g_ are interchangeable, as in _yaf_, _gaf_, _youen_, _gouen_; _g_ even occurs for _k_, as in _rang_, 2561. In MSS., _e_ is not uncommonly written by mistake for _o_; this may perhaps account for _helde_, 2472, _meste_, 233, _her_, 1924, which should rather be _holde_, 30, _moste_, and _hor_, 235; there is a like confusion of _weren_ and _woren_; and perhaps _grotinde_ should be _gretinde_.[36] The vowel _u_ is replaced by the modern _ou_ in the words _prud_, 302, _suth_, 434, _but_, 1040, _hus_, 740, _spusen_, 1123; cf. _hws_ in l. 1141. Mr Ellis shews, in his Early English Pronunciation, chap. v, that in pure specimens of the _thirteenth_ century, there is no _ou_ in such words, and in the _fourteenth_ century, no simple _u_. This furnishes a ready explanation of the otherwise difficult _sure_, in l. 2005; it is merely the adverb of _sour_, _sourly_ being used in the sense of _bitterly_; to _bye it bitterly_, or _bye it bittre_, is a common phrase in Piers Plowman. Other spellings worth notice occur in _ouerga_, 314, _stra_, 315 (spelt _strie_ in l. 998), _hawe_, 1188, _plawe_, 950, _sal_, 628 (commonly spelt _shal_). Note also _arum_ for _arm_, _harum_ for _harm_, _boren_ for _born_, 1878, and _koren_ for _corn_, 1879. There are several instances of words joined together, as _haui_, 2002, _biddi_, 484; _shaltu_, 2186, _wiltu_, 905, _wenestu_, 1787; _wilte_, 528, _thenkeste_, 578, _shaltou_, 1800; _thouthe_, 790, _hauedet_, _youenet_, _hauenet_; _sawe_, 338; _latus_, 1772; where the personal pronouns _i_, _þu_, _he_, _it_, _we_, _us_ are added to the verb. Hence, in l. 745, it is very likely that _calleth_ is written for _callet_, i.e. call it; and on the same principle we can explain _dones_; see _Es_ in the Glossary. In like manner _goddot_ is contracted from _God wot_; and _þerl_ from _þe erl_.