Pronunciation guide: IPA symbols, stress and word endings

θ	thin	ð	this	ʃ	she	ʒ	measure
tʃ	church	dʒ	judge	ŋ	sing	j	yes

p b t d k g f v s z h m n l r w sound as in ordinary English spelling.

ˈ main stress, before the stressed syllable: /ˈwɔːtə/ water · ˌ lighter (secondary) stress: /ˌʌndəˈstænd/ understand
ː a long vowel · (r) an r said only in accents that pronounce it (most American, Scottish, Irish)

-s / -es (plurals; he/she form of verbs): /s/ after voiceless sounds (cats), /z/ after voiced (dogs), /ɪz/ after s, z, sh, ch, j sounds (buses, watches). Spelling: -es after s, x, z, ch, sh; consonant + y → -ies (city → cities).
-ed (past): /t/ after voiceless sounds (walked), /d/ after voiced (played), /ɪd/ after t or d (wanted). Spelling: love → loved, stop → stopped, carry → carried.
-ing: make → making, run → running, see → seeing.
Irregular: go, went, gone · be, was, been · see, saw, seen · man → men · child → children · mouse → mice.
Older (King James) forms: -eth = -s (he loveth = he loves) · -est with “thou” (thou lovest) · spake = spoke.

deficient

/dɪˈfɪʃənt/ adjective, noun

Forms deficients

adjective Lacking something essential; often construed with in. “They were deficient in social skills.”
adjective Insufficient or inadequate in amount.
adjective (mathematics) Of a number n, Having the sum of divisors σ(n) < 2n, or, equivalently, the sum of proper divisors (or aliquot sum) s(n) < n.
noun A person who is deficient.

Synonyms

From Latin deficiens, present participle of deficere (“to lack, fail, be wanting”); see defect.

Etymology [L. deficiens, -entis, p. pr. of deficere to be wanting. See Defect.]

Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “deficient”, CC BY-SA 4.0. Details

Sanskrit dictionary entries whose meaning includes “deficient” (best matches first).

अस्कृधोयु a-skṛdhoyu not narrow or deficient, abundant.
अप्रचेतस् a-pracetas deficient in understanding, foolish.
अयव ayava deficient; ( as ), m., name of a worm bred in the intestines.
कृधु kṛdhu or kṛdhuka, as, ā, am, Vedic shortened, mutilated, small, deficient.
परिहाण pari-hāṇa suffering loss, losing; coming short of, being deficient, diminution, decrease.
दभ्र dabhra little, small, deficient; ( as ), m. the sea, ocean; ( am ), ind. a little, slightly.
परिहीण pari-hīṇa waned, faded, wasted; deserted by; deprived of, destitute of; wanting, deficient in (with abl.).
अपूर्ण a-pūrṇa not full or entire, imperfect, incomplete, deficient; ( am ), n. an incomplete number, a fraction.