Description:

The term 'trahe' was borrowed from the Spanish 'traje' in some local varieties of Common during the middle period. It got taken to elite boarding schools by children from territories where it was popular and gained popularity as slang by students who took it back to other parts of the world. Eventually it ameliorated and entered High Common as a normal word, eventually being recognised as such by the AXZ.

In High Common, it means formal business wear for either sex, with more of a stereotypical suit and tie meant for men. It is also a word for 'uniform', and in that context could refer to any kind of formally defined uniform.

In a verbal context, it is a pali verb meaning to dress up or get dressed. You'd typically use it with a perfect verb form to say one is dressed. 

The modifier form 'trajes' means dressed formally.