How do you write top of the morning to in Gaelic?

There isn't a single perfect equivalent of "Top of the morning to you" in Gaelic (either Irish or Scottish Gaelic). The phrase is idiomatic English, and a direct translation wouldn't capture the same friendly, slightly archaic feel.

However, depending on the time of day and the level of formality, you could use several options:

* For a general morning greeting: `Dia dhuit` (Irish) or `Madainn mhath` (Scottish Gaelic) These translate to "God to you" (Irish) and "Good morning" (Scottish Gaelic), respectively. These are the most common and straightforward choices.

* Something a bit more elaborate (but less directly equivalent): You could use phrases that express a wish for a good day, such as:

* Irish: `Go mbeidh lá maith agat` (May you have a good day)

* Scottish Gaelic: `Biodh latha math agad` (May you have a good day)

The "Top of the morning" part doesn't have a direct translation. It implies a wish for good fortune from the very beginning of the day, but the Gaelic phrases above convey a similar sentiment of well-wishing for the day.