In the wake of David Salo's recent blog post "The mind of the Dark Lord" on midgardsmal.com, I thought to offer some content here by jotting down some personal thoughts concerning Black Speech and Orkish — namely, which Eldarin (or other) items I myself am reminded of by the petite corpus we have of the "terrible words of darkness" that were spawned by Sauron's corruption-powered enterprise... ;)

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agh 'and' — Q/S ar (AS-?)

bag (in bagronk 'cesspool') — Qe. múko 'dung, stercus' (QL:63) - for interplay of /a/ and /u/ cp. /ghâsh/

búrz|um 'darkness' — Q morn|ië

dug 'filth' — Gn. ûg 'mud' (PE11:73) : cp. /dush/, q.v.

durb- 'rule, reign over' — TUR- & its Q stock, might also be a phonemic alteration from TAR- / AR- in light of /dug/, /ghâsh/, /—ûk/. B.S. /b/ = transitive verb suffix? Cp. phonetically close Qenya causative wa.

dush *'sorcery' — IS-, Qe. issë (Q ista) 'knowledge' (presence of "disassociative" /d/ ? — keeping in mind the words for 'two' and 'bear' in Adûnaic & Q...)

ghâsh 'fire' — Val. u|rush, rush|ur

gimb- 'find' — Gn. gim- 'hear'; also note the interestingly similar Egyptian verb g-m(-j) 'to find'

goi 'tower' — Gn. dai 'sky, heaven'

golug (1st age) 'Noldo/r?' — ÑGOL–OD (N/S golodh)

gûl 'wraith(s)' — Gn. ûl 'ghost' (vs. "internal" history : PE17 pp. 31-2, 79, 125)

–hai '–folk' — LI-, Q lië; Ad. lâi // also cp. Gn. haitha- 'go, walk'

–ishi 'in' (loc. vs. dyn.) — Q -ssë, -essë (locative)

krimp- 'bind' — KHIM-, CE *khimbâ 'adhering' (adj) // also, ephemeral KHAP- 'bind, make fast, restrain, deprive of liberty' (VT41)

lug 'tower' — any relation to S ba|rad (?) (Eld. /r/ = B.S. /l/ in /olog/)

oghor '?' — TAW-AR- ? (Gn taur 'a dense wood or forest', PE11:69)

olog 'troll' — TOR-OK- (S torog); phonetically also Qe araukë 'demon'

ronk, ?gronk *'pool' — Q ringë (Etym:383-4), linya, linquë (#1)

sha 'with' (2nd tl.) — Q as '(together) with', YÛ- 'twi-, both', yo 'with' (see next)

shar(k?) *'old' — YA-, YAR- (Q yára) — remembering Ad. azar, Eld. A-YAR-

skai — Q sië; Ad. sâi

snaga — Gn. drog 'slave, thrall, servant' (< norokā, PE11:31)

–ûk 'all of' — KWA- & Q aqua 'fully, completely'

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Of course, any actual parallelism with Tolkien's original stream of thought would be interesting, considering e.g. the notable correlation between /a/ and /u/ one meets in these associations; the behaviour of the Q stop consonant /t-/; etc.