The meaning/concept of maññassavā / Dhatu-vibhanga Sutta (MN 140)

travellers - I was struck by the term maññassavā in the Dhatuvibhanga Sutta. > They have four foundations, standing on which the streams of > identification don’t flow. And when the streams of identification > don’t flow, they’re called a sage at peace. yattha ṭhitaṃ maññassavā > nappavattanti, maññassave kho pana nappavattamāne muni santoti > vuccati. It is translated as "the currents of construing," by Ven. Thanissaro and as "the streams of identification," on suttacentral.net (Ven. Sujato?). There is an elaboration of maññassavā later in the sutta as, "These are all forms of identifying: ‘I am’, ‘I am this’, ‘I will be’" etc. > ‘Asmī’ti, bhikkhu, maññitametaṃ, ‘ayamahamasmī’ti maññitametaṃ, > ‘bhavissan’ti maññitametaṃ... a) First - I assume the term is made up of "(a form of) maññ/maññati + assavā"? [PTS PED] Maññita (nt.) [pp. of maññati] illusion, imagination M i.486. Nine maññitāni (the same list is applied to the phanditāni, the papañcitāni & sankhatāni) at Vbh 390: asmi, ayam aham asmi, bhavissaŋ, na bhavissaŋ, rūpī bhavissaŋ, arūpī bh., saññī bh., asaññī bh., nevasaññī -- nâsaññī -- bh. Assava (adj.) [ā + sunāti, śru] loyal D i.137; Sn 22, 23, 32; J iv.98; vi.49; Miln 254; an˚ inattentive, not docile DhA i.7. I only sort-of get how the compound is then understood as "streams of identification" (**does the 'streams' derive from 'asava'[ā + sru]? Flow?**)... b) Where is this term "coming from," doctrinally, that is? Is it commonly used in the texts, esp. in the suttas, as a form of "I-consciouness/construction?" Are there any commentarial and/or scholarly discussions on this process of "flow of construing/identification?" Thanks much in advance! ~ananda