Lexical Definition

‎תַּאֲוָה‎ taʼăvâh (tah-av-aw') boundary ^H:N-F
from ‎תָּאָה‎

utmost bound.

• a limit, i.e. full extent

1) boundary, limit
1a) meaning uncertain

Brown-Driver-Briggs

[‎תַּאֲוָה‎] noun feminine boundary (as described by a mark ?); — construct ‎תַּאֲוַת גִּבְעת עוֺלָם‎ Gen 49:26 (this meaning AV RV Ew^{§ 186 b} [√ ‎תָּאָה‎] De^Gn √ ‎אוה‎, ‎תאה‎, ‎תוה‎), but < desire = desirable things, so most.

Brown-Driver-Briggs References