Running into new pinyin syllables, and "给"

[count_zero]

I think the correct word here is "morpheme". The initial "n" and final "en" are phonemes that together form the morpheme "nen". Correct me if I'm wrong, it's possible.

老牛吃嫩草 - An old cow eating fresh grass - ie a relationship between two people with a large age difference.

[li3wei1]

How about this? I've only just realised that 森 is pronounced sen and not shen. I think I learned this one in Taiwan, where the s's and sh's get a little confused.

[L-F-J]

kei (尅) and rua (挼)

Where did you come up with these pronunciations? My dictionary shows kè and ruó/nuó/nuò, all common pronunciations.

[li3wei1]

Here's another character that doesn't seem to share its pronunciation with any others: 谬 miù

[muirm]

谬 miù

What a handsome character.

If I ever need to transliterate my English name into Chinese, I use 谬儿 (as in Beijing 儿话 style). The character's meaning of course isn't ideal, so I just use it for fun.