Je was op zoek naar: semicolon (Engels - Wels)

semicolon
eiliad

delete the semicolon after ` 1998 ' and insert :
dileu'r hanner colon ar ôl ` 1998 ' ac ychwanegu :

in the third clause delete the semicolon and add at the end :
yn y trydydd cymal , dileu'r gwahannod ac ychwanegu ar y diwedd :

character reference did not end with a semicolon; most likely you used an ampersand character without intending to start an entity - escape ampersand as &
ni orffennwyd cyfeiriant nod gyda hanner-colon - mwy na thebyg y defnyddiwyd ampersand heb fwriadu dechrau endid - dylid defnyddio & yn lle

a list of mime types, separated by semicolon. this can be used to limit the usage of this entity to files with matching mime types. use the wizard button on the right to get a list of existing file types to choose from, using it will fill in the file masks as well.
gwall: cyflwr anhysbys i' r chwiliad cynyddol!

a list of filename masks, separated by semicolons. this can be used to limit the usage of this entity to files with matching names. use the wizard button to the right of the mimetype entry below to easily fill out both lists.
methodd y chwiliad cynyddol ganfod cydweddiad ar ôl pasio diwedd y ddogfen ac hefyd y safle dechrau, wrth fynd yn y cyfeiriad arall: