See the entire entry for lbṭ vb. to have trouble

SamTgJ Gen15:13 :מעכום תעכם הלא תותב יי זרעך : know for sure that your offspring will be an alien

See the entire entry for tawtāḇ, tawtāḇā (tōṯāḇ, tōṯāḇā) n.m. resident