From Middle Radestrian fvans, from Old Radestrian flans, from Proto-Radic *flans, from Proto-Hirdic *swlánəs, from Proto-Laenkean *swl̥-án-, from the Proto-Laenkean root *swal-(to stand).
From Middle Radestrian fvass, from Old Radestrian fwass, from Proto-Radic *fwahs(flea), from Proto-Hirdic *phwákhəs, from the Proto-Laenkean root *pʰwakʰ-(a flying insect).
From Middle Radestrian fýlt, from Old Radestrian fȳltt, from Proto-Radic *fȳlht, from Proto-Hirdic *phȳl-(to go), from the Proto-Laenkean root *pʰiwl-(to walk). Past forms suppleted from hant.
From Middle Radestrian fǿstre, levelled with other tens numerals, from Old Radestrian frø̄cŭls, from Proto-Radic *fęrcıls, from Proto-Laenkean *pʰæwz=kjæl-, from the Proto-Laenkean roots *pʰæwz-(nine) + *kjæl-(ten).
From Middle Radestrian fvéþs, from Old Radestrian flǫþs, from Proto-Radic *fǫlþs, from Proto-Hirdic *phɤ̄́lthəs, from Proto-Laenkean *pʰajl-tʰ-, from the Proto-Laenkean root *pʰajl-(above).
From Middle Radestrian fvuless, from Old Radestrian flŭlēr, from Proto-Radic *flılejir, from Proto-Hirdic *swləléṯis, from Proto-Laenkean *swl̥-lét-, from the Proto-Laenkean root *swal-(to stand).
From Middle Radestrian fvuliș, from Old Radestrian flŭlišjer, from Proto-Radic *flıler, *flılišjir, from Proto-Hirdic *swləlés, from Proto-Laenkean *swl̥-lé-, from the Proto-Laenkean root *swal-(to stand).
From Middle Radestrian fvușș, from Old Radestrian flošro, from Proto-Radic *fulšur, from Proto-Hirdic *phúlc̱us, from the Proto-Laenkean root *pʰulc-(flax).
From Middle Radestrian fvulra, fvuzra, from Old Radestrian floðra, from Proto-Radic *fulðor, from Proto-Hirdic *phuldhós, from Proto-Laenkean *pʰul-dʱó-, from the Proto-Laenkean root *pʰiwl-(to walk).