I am small
tsa`iyr (tsaw-eer')
little; (in number) few; (in age) young, (in value) ignoble -- least, little (one), small (one), + young(-er, -est).
and despised
bazah (baw-zaw')
to disesteem -- despise, disdain, contemn(-ptible), + think to scorn, vile person.
yet do not I forget
shakach (shaw-kakh')
to mislay, i.e. to be oblivious of, from want of memory or attention -- at all, (cause to) forget.
thy precepts
piqquwd (pik-kood')
appointed, i.e. a mandate (of God; plural only, collectively, for the Law) -- commandment, precept, statute.