に足る => worthy; worth doing N1
に足りない/に足らない => cannot; not worthy; not worth doing ~ N1
よく => Often... N5
Repetition, habit
昼となく夜となく => day and night N1
Continuous
よく => good, well N5
Emphasis on degree
からつくる/でつくる => made from; made with N4
おくに => Which country N5
Doubt
~くらいで      => only N1
くて => Adjective and adjective N5
List
とかく => anyway, anyhow N2
Vague
... ときく => I heard N2
Speculation
くらいの => Approximate~ N3
Emphasis on degree