Fain is a 4 letter English word. It's valid Scrabble word worth 7 points. It's valid Words with friends word worth 8 points.
You can make 29 anagrams from letters in fain (afin).
before 900; Middle English; Old English fæg(e)n; cognate with Old Norse feginn happy; akin to fair1
She kissed him again, fain to dispel the shadow that darkened his face.
One thing we fain would emphasise, before we conclude our account.
Neither were to be had, and he was fain to put up with a wafer.
But, no thanks unto him, the Bible he was fain to leave unmeddled with.
It was only as he exclaimed, “Good aunt, I am fain to see thee here!”
Me therein, an innocent man, the fiendish foe was fain to thrust with many another.
Bowed then to bench those bearers-of-glory, fain of the feasting.
He said I must sing—it was part of my studies, and I was fain to bend to his will.
The mate admired at a mood so novel for his commander, but he was fain to submit.
A burst of Homeric laughter was Sir William's reply--laughter in which all were fain to join.