Fela-fǽcne

According to the Old English Dictionary:

fela-fǽcne

adj. Very crafty; multĭdŏlōsus :-- Wineleás mon genimeþ him wulfas to geféran felafǽcne deór a friendless man takes wolves for his comrades very crafty animals, Exon. 91 b; Th. 342, 26; Gn. Ex. 148. fela-fæcne