For the sake of clarity, [v1] and [v2] are separated here although they may be related (among each other, as well as to ↗sunnaẗ). For an overview of all items, cf. ↗SNː (SNN). [v1] ‘tooth; to sharpen’
► sinn al-fīl, n., ivory.
sanna, u (sann), vb. I, to sharpen, whet, hone, grind; to mold, shape, form: denom. from sinn ‘tooth’. – For other meanings see ↗sunnaẗ.
► sannana, vb. II, to sharpen, whet, hone, grind; to indent, jag, notch: caus. denom. (to make sharp like teetch, make look like teeth).
► ʔasanna, vb. IV, to grow teeth, cut o.’s teeth, teethe: denom. – For other meanings see below, [v2].
► ĭstanna, vb. VIII, to clean and polish o.’s teeth with the siwāk : denom., autobenef. – For other meanings see ↗sunnaẗ.
► ʔasnānī, adj., dental (phon.): nsb-adj, from ʔasnān, pl. of sinn ‘tooth’.
► sinān, pl. ʔasinnaẗ, n., spearhead: cf. notes to section "DETAILS" above.
► sanūn, n., tooth powder.
► sannān, pl. ‑ūn, n., grinder, sharpener (of knives, shears): n.prof.
► misann, pl. ‑āt, masānnᵘ, n., whetstone, grindstone; razor strop: n.instr.
► tasnīn, n., clothing of teeth (children), teething: vn. II, used as techn.term.
► masnūn, adj., 1 sharpened, whetted, honed; tapered; pointed (e.g., mustache, features): PP I. — (belonging here?) 2 stinking, fetid (mire): lit., *‘sharp, biting’ odour? — For other meanings see ↗sunnaẗ.
► musannan, adj., toothed, serrated, dentate, denticulate, indented, jagged; pointed, sharp; sharp-featured (countenance): PP II. | ʕaǧalaẗ ~aẗ, n., cogwheel; ~ al-ʔaṭrāf, adj., deckle-edged (paper).
► musannanaẗ, pl. ‑āt, cogwheel: PP II f., used as term.techn. in mechanics.
[v2] ‘age, to grow older’
► sinn al-rušd, n., legal age, majority.
► sinn al-murāhaqaẗ, n., age of puberty.
► sinn al-ṭufūlaẗ, n., early childhood.
► ṣaġīr al sinn, adj., young.
► kabīr al sinn, adj., old.
► ṭaʕana fī ’l-sinn, vb. I, to be advanced in years, be aged.
► taqaddamat bihī al sinn, vb. V, to grow older, to age; to be advanced in years.
► ʔasanna, vb. IV, to grow old, to age; to be advanced in years: denom. from sinn ‘(old, advanced) age)’. – For other meanings see above, [v1].
► ʔasannᵘ, adj., older, farther advanced in years: elat. formation.
► musinn, pl. ‑ūn, masānnᵘ, adj., old, aged, advanced in years: PA IV. | dār al-~īn, n.f., home for the aged, old folks home.