Garamond, probably.
A font is a style or design of text. For example A, Z, 1 and 9 etc. You can change style, design, size of a font.
The font in Microsoft Word that is most like Gaelic writing would be the Sans Serif font as it is most closely related to this form of writing style.
Times New Roman 12 is the default style font for Microsoft Word. You can set your own default if you do not like it. But, if you submit to publishers most use that font style. Academics often require that too.Normal Style
You cannot change the color of the font on windows notepad but if you click Format then you click Font... you can change the Font Font Style and the Size. If you really want to change the color try Windows WordPad or Microsoft-Word.
It is the main font used in Microsoft Word.
Segoe font
The font type is what it looks. There are quite a lot of them. Font size is the size of them.
style="font-size:10px"
Your question is confusing. If you need to change the style of the text, you need to use style/CSS.
The smallest you can make a font in Microsoft Word is a 1.
font
Font:- calibri size:- 11