இரேகை - irekai
ரேகை, s. a line, a stroke in writing, வரி; 2. the lines in the palm of the hand (கைரேகை), sole of the feet, forehead etc; 3. assessment, tax, இறை; 4. letter, writing, எழுத்து; 5. a digit of the moon.
இரேகைகட்ட, to pay tax or assessment. அக்ஷரேகை, the northern tropical line. நிரக்ஷரேகை, the southern tropical line.