arbour ardour armour behaviour candour clamour clangour colour contour demeanour dishonour dolour endeavour favour fervour flavour harbour honour humour labour neighbour odour parlour rancour rigour rumour savour saviour splendour succour tambour tumour valour vapour vigour The _u_ is dropped when the termination _ous_ is added to any of these words; as, _clamorous_, _dolorous_, _humorous_, _laborious_, _odorous_, _rancorous_, _rigorous_, _valorous_, _vigorous_. And also in derivative words; such as _armory_, _honorary_, &c. _SION and TION._ _Primitive words_ which end in _d_, _de_, _ge_, _mit_, _rt_, _se_, or _ss_, take _sion_ in their derivatives; but all other words have _tion_. EXAMPLES. abscin_d_, abscission condescen_d_, condescension eva_de_, evasion intru_de_, intrusion abster_ge_, abstersion emer_ge_, emersion ad_mit_, admission re_mit_, remission reve_rt_, reversion conve_rt_, conversion confu_se_, confusion revi_se_, revision impre_ss_, impression confe_ss_, confession admi_x_, admixtion promo_te_, promotion IRREGULARS. adhesion cohesion compulsion declension decursion depulsion dissension divulsion evulsion exesion expulsion impulsion incursion propulsion recension recursion revulsion scansion tension transcursion version attention causation distention distortion coercion suspicion crucifixion _FARTHER and FURTHER._ _Farther_ is nowadays only employed when speaking of _distance_; in all other acceptations of the word, _further_ is generally adopted. _PEAS and PEASE._ There are scarcely any words in which a mistake is more frequently made than in _peas_ and _pease_. Yet the distinction between them is simple and well defined. _Peas_ is the plural of _pea_, and, consequently, only follows _numeral_ adjectives; as, “_ten_ peas,” “a _hundred_ peas,” “a _few_ peas,” “_many_ peas;” but _pease_ is used when speaking of the legumen in the aggregate, or generally. Thus, we correctly say, “_Pease_ are dear this year,” “_Pease_ were plentifully supplied to the horses,” &c. _Pease_ is also employed adjectively; as, “_pease_-pudding,” “_pease_-soup,” or “_pea_-soup,” &c. _The Omission of S in the Possessive Case._