начало

1) General subject: alpha, authorship, basis, birth, birthday, break-up, breaking, coming in, coming-in, commencement, dawn, dawning, derivation, entry (месяца и т. п.), forepart, handsel (торговли), infancy, infanthood, lead-off, morning, offset, onset, opener, origin, origination, outbreak, (внезапное) outbreak (войны, суматохи и т.п.), outset, overture, preamble, prelude, prelusion, principle, prologue (чего-л.), rise, rudiments, seed, send off, send-off, set-out, source, springhead, start-up, throw off, throw-off (охоты, бегов и т.п.), youth, youthhead, beginning, cradle, inception, opening, spring, early (напр., в начале хх века - in the early xx century), prime

2) Computers: leader

3) Geology: proceeding

4) Medicine: incipience

5) Colloquial: go-of, off, throw-off (охоты, бегов), go-off, kick-off

6) Obsolete: term

7) Literal: threshold

8) Philosophy: utpada (скорее как процесс, чем как точка - термин индийской философии)

9) Engineering: outbreak (военных действий), starting, home

10) Bookish: inchoation, primordium, proem, prooemium

11) Chemistry: getting started

12) Construction: opening (работ и т. п.)

13) Mathematics: the onset

14) Religion: principality

15) Economy: launch (чего-л.), launching (чего-л.)

16) Accounting: first

17) Architecture: threshold (в переносном смысле этих слов)

18) Diplomatic term: founding (чего-л.)

19) Metallurgy: kickoff, starting-up (напр. плавки)

20) Polygraphy: home (экрана дисплея), leader (напр. рулона)

21) Psychology: entrance, onset (болезни), onset (ощущения действия стимула)

22) Telecommunications: initiation

23) Information technology: base, begin

24) Oil: starting out, starting over, commence

25) Patents: original

26) Drilling: datum

27) Labor protection: roll-out

28) Quality control: start

29) Makarov: home (страницы, экрана дисплея), incipiency, mother, onset (процесса), origin (напр. координат или отсчёта), springing, springs, theorem, top