FTP Deut29:17 :מריר כלענתא דמותא‏ : bitter like the wormwood of death
See the entire entry for lˁnh n.f. wormword

FTP Deut29:17 :הוא דמי לשורש קביע‏ : he is like a fixed root
See the entire entry for šreš, šeršā n.m. root