Fast

fastur

(firmly or securely fixed in place)

fastur

(of sleep: deep or sound)

fljótur

(moving or capable of moving with great speed)

fljótur

(ahead of the correct time or schedule)

hraðskreiður

(moving or capable of moving with great speed)

hraður

(moving or capable of moving with great speed)

kvikur

(moving or capable of moving with great speed)

skjótur

(moving or capable of moving with great speed)

snöggur

(moving or capable of moving with great speed)

ör

(moving or capable of moving with great speed)

fast

(in a firm or secure manner)

fast

(of sleeping: deeply or soundly)

hratt

(with great speed)

fasta

(to abstain from food)