正宗

orthodox school / fig. traditional / old school / authentic / genuine

first month of the lunar year

straight / upright / proper / main / principal / to correct / to rectify / exactly / just (at that time) / right (in that place) / (math.) positive

school / sect / purpose / model / ancestor / clan / to take as one's model (in academic or artistic work) / classifier for batches, items, cases (medical or legal), reservoirs