Māsa
Māsa,1 [cp.Vedic māsa,& mās; Gr.mήn (Ionic meiζ); Av.māh (moon & month); Lat.mensis; Oir.mī; Goth.mēna=moon; Ohg.māno,mānōt month.Fr.*mē to measure:see mināti] a month,as the 12th part of the year.The 12 months are (beginning with what chronologically corresponds to our middle of March):Citta (Citra),Vesākha,Jeṭṭha,Āsāḷha,Sāvaṇa,Poṭṭhapāda,Assayuja,Kattika,Māgasira,Phussa,Māgha,Phagguna.As to the names cp.nakkhatta.Usually in Acc.,used adverbially; Nom.rare,e.g.aḍḍha-māso half-month VvA.66; Āsāḷhi-māsa VvA.307 (=gimhānaṁ pacchima māsa); pl.dve māsā PvA.34 (read māse); cattāro gimhāna-māsā KhA 192 (of which the 1st is Citra,otherwise called Paṭhama-gimha “1st summer” and Bāla-vasanta “premature spring”).-- Instr.pl.catūhi māsehi Miln.82; PvA.I,1012.-- Acc.pl.as adv.:dasamāse 10 months J.I,52; bahu-māse PvA.135; also nt.chammāsāni 6 months S.III,155.Freq.Acc.sg.collectively:a period of ...,e.g.temāsaṁ 3 months DhsA.15; PvA.20; catu° DA.I,83; PvA.96; satta° PvA.20; dasa° PvA.63; aḍḍha° a fortnight Vin.IV,117.-- On māsa (& f.māsī),as well as shortened form °ma see puṇṇa.
--puṇṇatā fullness or completion of the month DA.I,140; --mattaṁ (adv.) for the duration of a month PvA.19.(Page 531)