Ge-freósan

According to the Old English Dictionary:

ge-freósan

p. pl. -fruron To freeze :-- Gefruron swá swá weallas wæteru, gefruron ýþa on middele sǽs gelauerunt tamquam muros aquae, gelauerunt fluctus in media maris, Ps. Rdr. 281, 8. ge-freosan